Follow the reluctant adventures in the life of a Welsh astrophysicist sent around the world for some reason, wherein I photograph potatoes and destroy galaxies in the name of science. And don't forget about my website, www.rhysy.net



Sunday, 15 February 2015

Why Captain Kirk Was Chasing The Voth

A few days ago I received an email from a fellow Trekkie with a question about quasars. As one does.

"WHAT !?!? AN EMAIL THAT'S NOT FROM A PSEUDOSCIENTIST ????"
"If quasars weren't extragalactic, what might they have (otherwise have been found to have) been ? Lest that sound too much like something from Velikovsky, rest assured I'm asking in terms of SF…or space opera anyway, for strictly Trek-related reasons. Let me explain.

I breathed a sigh of relief at the Velikovsky dismissal, because I've had just about enough of dealing with wackos who think they understand science better than scientists. But I digress.

As you may or may not know, Trek's episode "Galileo 7" cited Kirk's "standing orders" to "investigate all quasars and quasar-like phenomena." This order was cutting-edge in 1967, when quasars' nature and location(s) were unclear. Today it's an anachronism…but my bent for "aired data is factual" Treknological speculation has me longing to be able to say more than, "If taken at face value, these orders imply the very COSMOS of [original series] Star Trek differs fundamentally from our own." "

Well, indeed, I am acutely aware of the episode in question. It's a great episode where we see some fundamental character conflicts that were barely seen in later Trek seasons. But the notion that Captain Kirk could take the Enterprise off on a study of quasars is, as everyone knows these days, just plain silly.

Of course, the rest of the show was a masterclass in subtle understatement.

What are quasars, anyway ?

Quasar, for those of you not in the know, is a short form of "quasi-stellar object" : things that look a bit like stars, but aren't stars at all. They were discovered in the early 1960's using radio telescopes (that they featured in Star Trek as early as 1967 is a credit to the writers). The name comes from the fact that they were bright sources of radio waves but with only a star-like object seen in visible light. At the time, no-one even knew how far away they were, let alone what they were.

Pretty soon though, someone measured the redshift of one of them - that is, how fast it's moving away from us. It was found to be a whopping 48,000 km/s (a hundred million miles per hour, or nearly three hundred billion furlongs per fortnight) - much, much faster than anything in our Galaxy. Later, galaxies were discovered at the same positions as the quasars. So it's now a certainty - yes, really, a certainty - that quasars are very distant, incredibly bright objects.


48,000 km/s is about 15% of the speed of light, which is jolly fast. Accelerating something as big as a star to that speed takes an enormous amount of energy - roughly speaking the entire energy output of our Galaxy for a year. So for quasars to be natural, nearby objects is basically a non-starter. But other galaxies are doing this quite naturally - pretty much all of them, really (much more on this later). The more distant a galaxy is, the faster it's moving away from us, a discovery known as Hubble's Law though the real credit should go to Georges LemaĆ®tre*.

* Interestingly, it seems that Hubble didn't believe redshift was really equivalent to speed, but we'll get back to that later.

Anyway, quasars are tremendously far away (many hundreds of millions of light years), so they have to be extremely bright. But they can't just be unusual galaxies - as we've seen, their host galaxies don't look all that weird - because their brightness can vary on a timescale of days. Galaxies don't, indeed, can't, do that.

Whatever quasars are, they have to be small - no more than the distance light travels in a day or so (about 26 billion kilometres, several times the distance to Pluto). Since nothing can travel faster than light, if they were any larger than that there's no way the change in brightness would vary consistently across the object : some parts would be bright while others were dim, and vice-versa. It would all cancel out so it would look like there was never any variation at all.

Long story short, our current best guess for what quasars are is something like this :

The idea is that quasars look different from different viewing angles. So if we happen to be looking straight down the jet, they look very bright; if we're edge on and looking at the torus, they're dimmer. Image author unknown.
A huge black hole (by the standards of black holes, which is still tiny compared to galaxies) gobbling up material which swirls around it in an accretion disc. Before it falls in to the hole itself, from which nothing can escape, it gets hot and radiates energy. It turns out that accretion is one of the most efficient ways to release energy, second only, perhaps, to a matter-antimatter explosion. This is not so much because of the mass of the black hole, but more because that mass is very concentrated.

Imagine you dug a hole right down to the center of the Earth, and, feeling reckless, you jumped in. Obviously, you'd get faster and faster. But while your speed would always increase right until you met a miserable fate at the bottom of the hole*, your acceleration would steadily decrease. The further down you went, the less mass there'd be pulling you down. For a solid sphere, it turns out that you only feel the pull of gravity from the mass beneath you - all the mass above you cancels out.

* I said you dug a hole to the center. I never said it went right out to the other side.


This Wikipedia illustration is too sensible. It even puts
the little dude inside an elevator so the tunnel can be
a vaccum.
Not so with a black hole. To squish the Earth into a black hole we'd have to make it about the same size as a pea. Let's suppose we were clever and stupid enough to do this. Well, we'd suddenly find ourselves floating in space with a black hole now around 6,000 km below our feet. We'd start falling... but this time our acceleration wouldn't decrease. It would get higher the closer we were to the hole. All of the mass of the Earth would still be beneath us right until the bitter end - which means we end up with a much higher final speed (as in near light speed, though things get horrendously complicated with such strong gravity), releasing more energy.

Funny thing though - our initial acceleration wouldn't have been any greater than if we'd dug a hole. Turn the Sun into a black hole and it wouldn't start sucking everything in, in fact it wouldn't pull on us any more strongly than it does now. Even at where the surface of the Sun is now, the gravity wouldn't be any stronger - but get closer, and things get much, much worse. It's the concentration of mass that makes things go haywire, not the amount of mass.


What about Kirk ?

That's enough about science (said no-one, ever*). How can we reconcile what we know about quasars today with Kirk's standing orders ? Well... we can't. The Enterprise was limited to exploring our own Galaxy, it couldn't go flying off to study distant quasars. Unless... what if we got that whole redshift thing wrong ?

* No-one worth knowing, at any rate.

Bad news, we didn't. We know quasars are extragalactic because we've seen their host galaxies, remember ? But maybe we can make this work with what we knew about quasars in 1967.

The "quasar" as it originally appeared in the show. In the remastered version it looks like this.
The strictest definition of redshift is that the frequency (wavelength) of light is altered. It doesn't actually mean things are very far away or even moving very fast. There are actually three ways we know of creating redshift : 1) Expand space between us and the object; 2) Move it very fast; 3) Put it in a strong gravitational field.

Expanding space is basically the real-world answer (that's why galaxies can have high redshifts), sheer speed is something we'll come back to in a moment, as is strong gravity. Suffice for now that the latter two have problems.

Some astronomers were so startled by how frickin' bright they would have to be if they were as far away as redshifts would conventionally suggest, that they proposed a fourth mechanism : intrinsic redshift. The idea was that the light was emitted at at different frequency to begin with, but as to how this was supposed to happen was anyone's guess. It wasn't an outrageous idea, it just didn't work.

So that leaves us with gravity and speed. If we have incredibly strong gravity, we can create the same redshift we'd normally mistake for extreme speed. From this formula, all we need is the size of the object, its distance and redshift, and we can work out its mass.

We've got the redshift from the observations, so that's easy. We can place an upper limit on the distance given the size of the Federation (about 8,000 light years across) and the highest resolution observations available in 1967 (about 1" or 0.0003 degrees) - any larger than that and quasars would have looked like diffuse objects rather than stars, even with telescopes of the 1960's. Allowing the Murasaki quasar to be around 5,000 light years from Earth, this gives us an upper size limit of around 0.024 light years or 1500 AU.

Aaar ! Thaat quasaaar be one aaarcsecond across, arrr !
That means we now have size, distance, and redshift, so we can work out mass - which turns out to be 9 billion times the mass of the Sun, or 15% of the stellar mass of the Milky Way. The density wouldn't be that great by everyday standards (about 300x less than water, about the same as ordinary clouds), but it would still be staggeringly huge compared to most of the matter between the stars. The free-fall time (for it to collapse to a point ignoring everything except gravity) would be about two weeks. This could be prevented if the gas was hot enough, but the temperature needed to prevent collapse would be around six hundred billion Kelvin. Or Celsius. Or Fahrenheit. At that temperature it really doesn't make any difference.

An object that size with that temperature would have the energy output of five tredecdillion Suns. That's a number far larger than all the stars in the Universe. The energy received on Earth in one square metre would be the same as the total output of 200 Suns. This monster wouldn't be a planet killer, it would be a galaxy killer.

We'd die.

Admittedly, I'm pushing the equations well beyond their breaking points, but the point is that a giant nearby quasar with strong gravity is a bloody stupid idea.

But remember, the size limit was imposed only because of telescope resolution. Maybe we could still get equivalent gravitational redshifts from smaller objects ? Alas, not really. It turns out that to get a redshift of 0.15 (the lowest known), the light would have to be emitted from a radius only about four times the Schwarzchild radius, the size below which an object of a given mass becomes a black hole. As we've seen above, it's nigh-on impossible to get a large, stable object like a star that's so massive for its size.

But couldn't we just do this by having material emitting light when it's close to the surface of a different object, like a neutron star or a black hole ? In my email response, I made a mistake and said that to do this would require emitting material to be below the Schwarzchild radius, which is impossible. But that's not the case at all. Theoretically, you can get any redshift you like if the material is close enough to the event horizon.

Stellar mass black holes have event horizons ~10 km across, far smaller than the maximum 1500 AU size allowed by observations, so that's good. Emission that looks like it's at a redshift of 0.15 would have to come from around 350 km from the singularity. The problem is there's no obvious reason why the emission should peak at this distance - you'd have to somehow keep the material stable far above the hole itself, otherwise you'd see a much higher redshift as the material fell further in to the gravitational well. Also, apparently it just isn't possible to have material creating redshifts greater than 0.62, which are observed for many quasars.



What about a rocket ?

Good thinking, Batman ! The one remaining option to generating such high redshifts is sheer speed. But, how do we get material up to such a tremendously high speed ? Easy :


In the Trek universe, "aliens" are not only a perfectly valid explanation, but they're probably the most likely explanation. There's one alternative : white holes, a.k.a wormholes. Material falling into a black hole might be spat out of its opposite somewhere else in the Universe (but almost certainly isn't). Fortunately this one is easy to dismiss : in Trek cosmology, wormholes are very rare and very unstable (with one notable exception), nor do they ever eject huge quantities of matter. So these aren't a very likely explanation at all*.

* Naturally occurring jets from black holes can also reach tremendous speeds. The problem is that each black hole has two jets, pointing in opposite directions. So if quasars were actually black holes in our own galaxy, we'd see this second jet.

So natural explanations are out. Which leaves the question : what is it the aliens are accelerating up to such high velocities, and why ? Obviously, nothing larger than 1500 AU in diameter, but things which are bright enough to look like stars. So, stars then ? Well, as I mentioned, this would take a tremendous amount of energy, equivalent to the mass of a small asteroid in anti-matter. That's an awful lot in the Trek universe, but not out of the question. Also, of course, Trek science allows for faster than light travel - in reality this requires infinite energy. So maybe with Trek physics there could be a way to use far smaller quantities of anti-matter to achieve the same result.

There are a couple of other interesting observations about quasars that are also relevant in working out what the aliens are up to. One is that there are no quasars with blueshifts - they're all moving away from us, unlike some galaxies. That means that - accepting that quasars are not extragalactic, for the purposes of Kirk being able to visit them - they have to be a purely local phenomena. If other galaxies were spewing out there own quasars by some natural process, we'd see some of them heading toward us*. Which makes "aliens" a very plausible explanation indeed.

* In the real world, we don't see this because quasars are almost exclusively found in very distant galaxies, where the expansion of the Universe is much greater than their peculiar velocities.

The other interesting nugget is that quasars are found more or less evenly across the whole sky. Stars, of course, are not distributed like this - because we live in a spiral galaxy we see a band of them across the sky. Those outside the band are nearby.

With Earth at the center of the circle.
In reality, that means that quasars - if they are basically weird stars - have to be very close, within 2,000 light years or so. But since we've constrained quasars to be a local phenomenon distinct from stars, with redshift indicating speed, that's no longer the case. They can't be too far away though, or their density will be so low that Kirk is never going to be able to visit any. Say a cloud of about the same diameter as the Milky Way.

A huge cloud of star-like things rushing away from Earth is a plain ridiculous explanation in the real world, but totally satisfactory if you're allowed to say, "because aliens". Making this cloud about the size of the Milky Way also means that only a very few quasars will be within range of a Federation starship, so Kirk's orders then make a lot of sense. Not too close - or the Feds would already have investigated hundreds of the buggers - and not too far away, otherwise there'd be none to visit at all.


Enter the Voth

I mean, come on. A bunch of mysterious objects rushing away from Earth ? It could hardly be more sci-fi. A mega-engineering project to hurl stars out of our Galaxy is one possibility, a more obvious explanation is that quasars are in some way alien spaceships themselves.

Initially, I rejected the idea of star-hurling for several reasons. The energy requirements are huge, and their isotropic distribution implies something like an explosive event. But would the alien spaceship interpretation be any better ?

Given the brightness of the brightest quasar, and assuming it to be at a distance of 5,000 light years, it would be about 400 times as luminous (that is, its energy output) as the Sun. That's equivalent to combining 4 million tonnes of matter with 4 million tonnes of anti-matter every second. Which, for comparison, is roughly a cube of basalt (the densest rock) 100 metres on a side. With something as dense as the material inside a neutron star, things are a bit better - maybe 1 cubic metre per second or even much less, though storing such material is hazardous.

Hazardous here meaning, "mistakes will briefly make your starship shine as brightly as the Sun".
One wonders why aliens capable of such stupendous feats of engineering haven't, in the Trek universe, just invented warp drive like everybody else.

But let's assume they didn't. My initial thought would be that alien ships moving away from Earth that have been travelling for millennia sounds very much like the Voth. In Voyager, we learn that a bunch of dinosaurs managed to escape Earth before the asteroid hit (presumably before they even knew it was coming, otherwise deflecting an asteroid would certainly have been easier than launching a fleet of starships), eventually settling in the Delta Quadrant.

You know it makes sense.
The Voth are pretty advanced by Federation standards - they have transwarp drive and transporters which can beam aboard whole starships. But they're not nearly as advanced as one might imagine for a species that's been space-faring for 65 million years, and their politics is positively medieval. That suggests a generally very slow pace of development. They also command vast resources, with at least one spaceship that's tens of kilometres long.

They sound ideal. A species that's left Earth and has been travelling across the Galaxy, probably initially in very primitive craft. Presumably they would have travelled in many separate spacecraft travelling in different directions, to increase the chances that at least one of them would survive. So the Voth Voyager encounters need not be the only ones. Given Voth politics, it doesn't seem much of a stretch to suggest that maybe some of those others never even invented warp drive, and that's what 1960's scientists were observing as quasars.


Exit the Voth

But there are problems. The average speed to cross the galaxy in 65 million years is about 400 km/s. That's way faster than anything we have access to today, but it would still take over 3,000 years to reach the nearest star. Which is so long as to make the whole venture pointless, and given the Voth's stupendous feats of engineering, they ought to do rather better than that. We know they can manipulate energies equivalent to that of stars, which for a 10 km spaceship (assuming it to have a mass as though it were made of solid steel) should allow them to reach such a speed in a couple of seconds.

There's just no way the Voth - even the primitive ones - can be travelling so slowly. Especially given the redshift of what are supposed to be their ships, which are more than 100 times as great as their supposed initial speed.Worse, if quasars are spaceships, what exactly are we observing ? Their engine exhaust ? If so, we're seeing the engine exhaust rushing away from Earth...which means the ships themselves are heading right for us.


At this point I faffed an explanation, "maybe it's the bow-shock of their ships moving through the interstellar medium". Such features do exist around real-life high velocity stars (which are moving much more slowly than real quasars, < 100 km/s), but this is a stupid explanation. Only a tiny fraction of the material directly ahead of the ship would be forced up to the speed of the ship itself; the vast majority will be pushed aside into a tail.

Unnamed stars seen with Hubble.
The only realistic explanation of quasars for the Trek universe is that they are small, bright objects moving very rapidly away from us. That brings us back to the star-hurlers again.


What about Murasaki ?

OK, so by invoking some treknological solution, an ancient race of super-advanced beings started hurling stars out of the Galaxy several tens of millennia ago. One thing that worried me is that since no quasars are blueshifted, all of those stars would have to have been close to our own Solar System, suggesting a sort of explosion. That means not only having the mass of an asteroid in anti-matter, but also inertial dampers powerful enough to stop a star from being ripped to shreds.

However, as the inquirer pointed out, this isn't necessarily the case. The explosion could have been far away from Earth, if it occurred long enough ago that the stars flung towards us have now moved past us. Or, perhaps the stars were selected from completely random locations in the Galaxy but always flung away from the Galaxy, rather than specifically away from Earth. Redshift tells us about motion along our line of sight, but it doesn't mean the stars aren't also moving - from our perspective - across the sky.

So star-hurling it is then. Where does that leave the Murasaki quasar ? Err... floating around in space. That's about all, really. If we're saying that quasars are just ordinary but fast-moving stars, they wouldn't necessarily seem all that weird up close. I have absolutely no idea what the bow shock from a relativistic star would look like though. That Murasaki doesn't seem to have one could just a viewing angle effect - since we don't see a bright central source, perhaps the Enterprise was directly behind the quasar.

We're given precious little information about Murasaki. It's described as a "quasar-like formation", with "negative ionic concentration 1.64 times ten to the ninth power metres". I don't know what this means. "Ionic concentration" is an odd term, more suited to chemistry. Astronomers would probably talk of "ionization fraction" or just "ion fraction", for convenience - what fraction of the gas is ionized. Why it matters to specify that these are negatively charged ions, I don't know. As for the incredibly clumsy, "times ten to the ninth power", they could have just said "billion" or "giga". I guess they wanted to sound more sciency. And "metres" as a unit of concentration is like saying, "I'd like seven Pascals of sausages, please."


Quite. The second piece of information is that the radiation wavelength is 370 angstroms. That puts it in the UV band (almost X-rays), which will indeed ionise interstellar gas. So that one is totally accurate.

Finally, we learn that "Harmonics - upward along the entire spectrum". This could mean anything. A harmonic might refer to a multiple of some frequency of radiation, with interference being successively weaker at higher harmonics. Maybe.

The entire sector has been ionised : "four entire solar systems" - presumably referring to all of the interstellar gas. Well I suppose as it's travelling through space, it could be shock-heating the surrounding gas, ionizing it. Maybe.

In summary, Murasaki itself tells us nothing that prohibits it from being a relativistic star, though nothing that indicates it definitely is one either.


What if quasars really were high velocity stars ?

Or rather, what if quasars weren't giant, distant black holes ? Much more difficult to answer. Our Universe would require different physical laws, but just how different is impossible to say. No-one had predicted the existence of quasars prior to their discovery - so you might think that implies they're not all that important. The problem with that is that we barely had any understanding our galaxy evolution at all in the 1960's - after all, it was at that time only about 30-40 years since galaxies were proved to be distant objects.

There are two ways we could go about preventing quasars : change the laws of physics...


Oh, right, yes. Of course. Silly of me. Guess that option isn't available then. Anyway, I have no idea how much we'd need to alter gravity and/or themodynamics, let alone what would happen if we did. Probably nothing good.

The second option is to be semi-magical and say that pretty much everything in the Universe proceeded from the Big Bang just as it did in reality, until the point where quasars first formed. At that point, for some reason, they didn't. Exactly how important quasars are in galaxy evolution isn't clear. Oddly enough, the mass of the black hole correlates with the mass of a galaxy's bulge and even the angle of its spiral arms. There's probably some underlying common connection between the two, so preventing quasars might necessitate dramatic differences in galaxy structure.

Would this prevent the Universe from being habitable ? My guess is probably not. Many simulations have reproduced the basic features of the Universe without invoking quasars at all. That doesn't mean there might not be massive differences in detail though : totally different star formation histories of galaxies, different structures, maybe the wrong numbers of dwarf galaxies... all kinds of things. But I can't see any obvious reason why lack of quasars would lead directly to a lack of a Federation.


Why are the aliens doing this ?

What, you mean hurling random stars out of our galaxy at tremendous speed ?  The questioner suggested that it might relate, somehow, to the creation of the Galactic Barrier that (in Trek) surrounds the Milky Way. Possible, but it would have to be an indirect connection since quasars are distributed isotropically. Though I suppose this barrier might surround the entire galaxy like a shell, in which case its depictions in the show shouldn't be taken literally - for one thing, it couldn't be so visible at optical wavelengths, otherwise we wouldn't be able to see other galaxies.


A.k.a. the Very Pink Barrier, the Barrier of Slight Inconvenience,
or the Barrier of Thinking Two-Dimensionally.
Of course, there's always Q, if we're allowing other Trek series. Q is the sort of entity who would choose to randomly hurl stars into extragalactic space for the sole purpose of confusing bloggers. Which seems an entirely sensible possibility if you ask me.




Conclusion

Kirk's standing orders are a bloody nightmare to reconcile with real-world physics, bordering on impossible. It's barely possible to make them fit what was known in the 1960's, but, if we must, relativistic stars seem a strong possibility. No other natural explanation (that we know of) seems to fit - and the power requirements for alien spaceships don't seem plausible, especially given their absurdly slow speeds by Trek standards.

As for how the aliens have gone about hurling stars out of the galaxy, I have no really no idea. Their reasons for doing so, I think, are best left as an exercise for the reader.

Monday, 19 January 2015

The Unthinking Atheist

There's a peculiar phenomena I see frequently on the interweb - people who think that because they are atheists, they must be better people than those of a religious leaning. These people believe that any sort of faith is the source of all evil, and that if only everyone would just stop believing things the world would be a better, happier place.

Such people range from the very, very stupid sort who can't spell, to the extremely erudite and learned (i.e. Richard Dawkins). All of them share the conviction not only that there are no supernatural deities, but that no-one else should believe in them either. While most atheists simply go about their lives not believing in magical deities, this most peculiar variety spend an awful lot of time trying to unconvert people from their faith and frequently hurling vicious abuse at anyone who dares question them.

There are two quite unrelated triggers for this rant/essay. One is that I've just finished reading The Science of Discworld IV. For readers unfamiliar with the series, they're not books about the astronavigation skills of world turtles - rather, they use Discworld as a sort of lens through which to examine real-world science. And in this instance there's also a strong philosophical leaning (which is considerably more interesting than in the previous two books) that directly relates to much of what I want to blather on about here.

Obligatory world-turtle shot.
I thought about writing a full review of the book, but it's only one-half of the trigger. The other is the horrific killings at the French satirical magazine Charlie Hebdo (I'll only be tangentially referring to that though, and, lest there be any doubt let me state JE SUIS CHARLIE). So I'll be referring to SODIV frequently, but I've got my own ideas to explore as well.

What I want to raise attention to is partially the abusive, hate-filled attitude of certain atheists (a provisional label that I'll return to later) , and partially the closely-related issue that many atheists feel they no longer need to question whether religion is a good thing. For them, it is an absolute certainty : any religious ideas, even those which are very moderate, are inherently bad and must be stamped out. That they are so disgusted with religion that they feel free to openly hurl hatred at its participants is, err, testament (see what I did there ?) to their fundamentalist non-faith. Yet their unquestioning insistence that religion in any form is wholly bad, whilst they simultaneously claim the blind faith they suppose is required by religion is a major part of its many, many flaws, looks very strange indeed.

Obviously - but it doesn't hurt to emphasis this - I'm not talking about the vast majority of atheists here. Certainly my (ostensibly) atheist friends outnumber my religious or even agnostic associates considerably. Yet, bewilderingly, the sheer number of people who hold religion as a scapegoat for all the world's ills is simply too large to attribute them to being the occasional internet troll. No, unthinking atheism is a thing, and it needs to be dealt with. In principle, this could also apply to agnosticism as well, but I've yet to see a single example of this in practise. Anyway "The Unthinking Atheist" is a sexier title.

In this first half I'll examine some mistaken ideas people have about atheism being somehow a more logical, natural position. I'll also be putting in a stalwart defence of agnosticism, because it's my blog and I can if I want to. However, if sophistry and petty linguistic disputes aren't your thing, feel free to scroll down to the second section, wherein I tell Johnny Antitheist to take his bigotry somewhere else. You'll miss the bit about the invisible goat though, which would be a shame.


Atheism and anti-theism

SODIV makes a very eloquent case that science is not a belief system, "it's a disbelief system". Which is true. I've already expounded my views on science and wacky ideas at length here, so I won't repeat them, but the opening chapter of SODIV pretty much repeats a lot of what I said. What they develop much further is a passionate case for atheism being fundamentally different to a religious viewpoint, and they argue persuasively that science and atheism are not alternative religions :

"A UFO believer, for example, may argue that not believing in UFOs is merely another kind of belief. Namely, a belief that UFOs don't exist. However, when virtually all of the alleged "evidence" for UFOs turns out to be mistaken, or false, the contrary position isn't a matter of belief at all. Zero belief in UFOs is not the same as 100% belief in the non-existence of UFOs. Zero belief is an absence of belief, not an opposed form of belief."

Now, as far as science goes, you won't get any argument from me. But can we apply this to atheism ? I'm not convinced, as we shall see in a moment. The authors make another very important point, but, curiously, fail to examine its implications in any detail. They note that some scientists are absolutely convinced about things they really have no business being convinced about :

"There are some who like certainty; they like to know just where they are. They tend to get their knowledge, their beliefs, from authoritative sources : the Bible, the Q'ran, textbooks [my emphasis], or the practises of their profession. They know that those who disagree with them are wrong, and sometimes evil.
Over the years we have found, somewhat to our surprise, that many scientists are also like this... There are biologists who know that the most important feature of any organism is its DNA... There are physicists who know that the Universe is made up of these particles, with these constants and mechanisms."

Here we have examples of scientists accepting non-religious ideas on faith. Yet, what the authors only barely hint at is the fact that neither science nor, more particularly, atheism, are shields against blind faith. Somehow, they have failed to realise that while a genuine total lack of belief is possible, it is also absolutely possible to hold (in a sense) the opposite stance.

If there is good evidence either way, then a belief that UFOs don't exist is subtly, but importantly, different from a lack of belief that UFOs exist. Proponents of the first stance will seek to refute any evidence of UFOs - photographs of flying saucers, they immediately say, must be fakes - whereas those holding the second viewpoint will be persuaded either way - they will (or at least could) consider carefully if a photograph stands up to expert analysis and only then form an opinion.


Agnosticism is very explicitly this lack of belief - it is skeptical (that is, inquiring) of claims both for and against. Atheism is much more of a grey area. Often it too is, more or lesssimply a lack of belief - many atheists just aren't interested in the subject. And that's fine. For some, it's the marginally stronger statement that God probably does not exist, and that's as far as they go. But for many others, it's not skeptical at all : it's a form of denial, an anti-theism, a resolute conviction that any religious ideology is not only wrong, but a Bad Thing.


Is atheism a religion ?

Antitheists (a term that is badly needed in common usage) deny this. They claim that they're merely atheists, that they don't have a belief system and that they're different to those of a religious ilk. Actually, there's a whole spectrum of possibilities. Certainly, the authors of SODIV do not fall into the hate-mongering variety I'll return to later, nor are they unthinking - they have considered the evidence carefully (one of them trained as a Rabbi) and found it wanting. Their conclusion is that God doesn't exist, but not necessarily that all religious beliefs are bad. However, they're utterly convinced that their conclusion must be the right one, which is rather stronger than their professed claim merely not to believe in God. They're also none too satisfied with agnosticism :

"Many religious people try to reject atheism as another form of belief, with the natural position being what they call agnosticism. They then interpret that stance as the view that the chances of God existing are about 50-50. So by being neutral, you are already halfway towards agreeing with them."

Worryingly, that's the only mention of agnosticism in the whole book. Yet I doubt most agnostics would agree the chances of God existing are 50-50. The whole point of being agnostic is that you don't know. That doesn't necessarily mean you think the chances are even (though some do), it can instead mean you think you can't even assess the probability. They continue :

"The default is to disbelieve. An atheist is not someone who believes God doesn't exist. It is someone who doesn't believe that God does exist."

Sir Terry, were it up to me, I'd take all of that hack Rowling's ill-gotten gains and deliver her fortune to you in cash in a great big truck. But you're dead wrong about this one. Firstly, a lack of belief (by itself) is widely accepted to be agnosticism, while someone who lacks belief in God and also believes God doesn't exist is called an atheist. I'm sorry, but that's just what the words mean. Redefining them in this particular way is a big mistake, which I'll return to in a moment.

Secondly, the ignorance of the existence of antitheists is a major problem : failing to acknowledge them undermines a lot of the rhetoric about atheism being the more rational position. It might be if atheism were really a true lack of belief - but it isn't, that's agnosticism ! And I agree, that should indeed be the default. Once evidence is presented (whatever kind of evidence that may be), we may form an opinion and, if we are so inclined, switch from agnosticism to theism/antitheism.

Suppose I were to tell you that there is an invisible hairy goat who lives on my head and farms mushrooms. You'd think I'd gone stark raving mad, obviously. But, until I told you about said goat, you were agnostic about its existence - you totally lacked any belief in a mushroom-farming invisible goat. The instance I told you about it, however, you became an atheist with respect to the head-dwelling goat : you believe it doesn't exist, maintaining agnosticism would be crazy. And in this case, your belief would be entirely, 100% correct. That's the point. Belief isn't inherently wrong or irrational. There's nothing inherently wrong with atheism, but there's no point pretending it isn't a belief.

Sometimes believing in things is right, sometimes it's wrong. Sheer belief neither makes a thing true nor untrue.


BUT I WANT TO EXIIIIIISSSST !!!!!
Many atheists choose to dismiss the possibility of God existing as you can't prove a negative - a sensible, rational philosophy, if you don't think there's any evidence. But there are also antitheists who are better described as being people who BELIEVE, with the same righteous fire normally associated with religious fanatics, that God does not exist. These people are convinced that everyone else must share their view and are on a mission to unconvert people. They have no problem in attacking anyone and everyone who disagrees with them. Just as a Creationist will dismiss any evidence of evolution, so antitheists will dismiss any suggestion that religion has ever contributed anything to society.

So the question, "Is atheism a religion ?" actually has a simple answer. Many (most) atheists aren't religious at all, nor is it necessarily a religious viewpoint. But for some of the more extreme antitheists, it absolutely is. It is this small but significant subset which concerns me here. Atheism itself is not a religion, but some people are giving a damn good try at making antitheism into one. If it looks like a duck, walks like a duck.... And I don't mean the sort of mainstream liberal-socialist duck- err, religion common in modern Europe (but for some reason much rarer in the US) - rather, the non-faith of antitheism is usually much closer to the extremist fundamentalism they profess to oppose most vehemently of all.


Terminology

As is no doubt already apparent, definitions matter. It should also be obvious that, as usual, things are better defined as a continuous spectrum rather than discrete categories, but we do need categories to simplify things. SODIV have, by their extreme conviction that there is no evidence whatsoever for the existence of deities, thrown a spanner in the works. Their definition of "atheist", which is far closer to the conventional "agnostic", is not what's usually understood by the term, which is more like "antitheist".

Now, as an agnostic, I admit to some bias against using "atheist" to mean "lack of belief". I greatly prefer the standard, widely-accepted definitions :
  • Fanatical theist : Someone who believes in the existence of a deity or deities and insists that their existence is a certainty.
  • Theist : Someone who believes in the existence of a deity or deities.
  • Agnostic : Someone who lacks belief in both the existence and non-existence of deities.
  • Atheist : Someone who believes deities do not exist.
  • Antitheist : Someone who believes deities do not, and cannot, exist.
SODIV''s definition of atheism is a hair's breath from agnostic. It's true that as an atheist, you lack belief in deities. But if you don't qualify that with the additional statement "and I believe they don't exist", then you're for all intents and purposes an agnostic. Atheists, in my experience, do hold this second statement to be true - removing it would make them agnostics, which neither they nor agnostics want. And the reason we have separate terms goes far beyond pedantic hair-splitting.

The thing is, redefining atheist to only mean a lack of belief is highly disingenuous : it implies that it's only possible to believe in things, not against them. This means you've effectively declared the non-existence of deities to be such an absolute certainty that you can't even acknowledge other points of view. Which makes you an antitheist rather than an atheist in the usual sense. And yet few atheists would say they are absolutely certain no deities exist (see below), so I think the standard definitions are better. They certainly involve less semantics and, as a bonus, define a nice clear spectrum of positions. I'll be using them throughout the rest of the post.

Even SODIV acknowledge that, unlike the case of an invisible goat, they can't disprove religious beliefs :

"Science can't disprove religious beliefs. Nothing can. That's the problem... But the inability of science to disprove religious beliefs does not make it a belief system... When presented with extraordinary hypotheses, disbelief is not the opposite of belief. It is the default, neutral stance : "I'm not interested in playing this game, it makes no sense."

There's that ambiguous word "disbelief" again. If they mean "lack belief", then I agree - but that's agnosticism ! If they mean, "believe they do not exist", then that's atheism, but I don't think that should be the default stance, because it certainly isn't neutral. For some reason I cannot fathom, they seem hell-bent on ignoring agnosticism whilst desperately trying to promote its virtues. Which is a shame, because if they'd understood what agnosticism means they I could have made this post a lot shorter.



Antitheism vs Atheism vs Agnosticism

Relatively few people are convinced by agnosticism as an alternative to atheism. One argument often made against it is that by analogy, it makes no sense to be agnostic about whether Santa Claus exists. And that's true, just as with the goat... but in that case there's a far more sensible, falsifiable alternative argument : it was your parents putting the presents under the tree the whole time. So of course it makes no sense to be agnostic about Santa, unless you're six and only just beginning to understand how the world works.

I mentioned earlier that agnosticism is a sensible position if there's no evidence, or equal evidence both ways, with regard to an issue. Now, I don't propose to tell you if that's the case for the existence of God* or not. Make your own decision with regards to the evidence. If you think it supports God's existence, go ahead and believe. If you think the evidence is against God, be an atheist. If you're not sure, here's why I favour agnosticism.

* Remembering that there are many definitions of "God". The kind of people who take every word of the Bible literally are simply nuts - a classic antitheist mistake is to assume that this is what all religious people do. Certainly there are better, falsifiable alternatives to a God who constantly intervenes to cause mass flooding and hurricanes and what have you. But deities in general, such as a prime mover ? That is a much stronger, less convincing statement.

Santa Claus is a poor analogy. A better one would be something much more controversial, like climate change - at least, climate change science as it was 30 years ago, or as it is perceived by the public today. Scientists 30 years ago were very uncertain as to whether humans were causing global warming. There are several positions anyone could have chosen at the time :
1) Agnostic : Wait and see. More evidence is needed. Believe nothing.
2) Atheist / theist : Choose to believe that humans are not the cause of global warming.
3) Antitheist / zealous theist : Choose to believe that humans are not and cannot be the cause of global warming.
4) Al Gore : OMFG I'VE GOT TO SAVE THE POLAR BEARS !!!!

Do I need a reason for this ? No, I don't think so.
Obviously, I've given the theistic perspectives the wrong opinions (and given them the same as the atheist/antithesit) for dramatic effect. Of course, it's conceivable they would choose to believe the exact opposite - but at the time, this would be a completely arbitrary decision and for the wrong reasons. Admittedly, I'm not sure what the equivalent theistic position is with regard to Al Gore.

The important thing is that antitheism and extreme theism both reach "certain" conclusions, in their own minds. Their system of thought is essentially the same - it's based on what they want to believe, not the actual evidence. When evidence is lacking, the agnostic position is the most rational. Of course, both the more moderate theist and atheist will be willing to change their minds if sufficient evidence is presented - those are perfectly sensible viewpoints too. But zealous theists and antitheists will not, and those people are the dangerous ones.

Ultimately, even agnosticism is another opinion - an opinion that the evidence is equal, or cannot be judged. However, it's very rare (verging on "never actually happens") for an agnostic to say, "I'm uncertain and I think everyone else should be too." Far more often it is confined to being a personal point of view : "I can't make up my mind about this, so I don't see why I should try and change anyone else's." In contrast, someone who is convinced by evidence to hold a firm opinion one way or another is far more likely to want to persuade others to share that opinion.

People naturally assess evidence in different ways, hence they reach different conclusions. For some people, being a theist is the only view that makes sense (if they've had a religious experience, for example). For others, the concept of a supernatural deity running the show just doesn't cut it, and so these people can't be anything other than atheists. Agnostics, meanwhile, are content to remain uncertain given insufficient evidence. To me, this is better than atheism because it completely avoids making what I see as an irrational judgement. Of course, anyone who really does think the evidence is actually against the existence of deities should be an atheist.

But evidence, of course, is not proof. When something is proven beyond all doubt, it makes no sense to believe otherwise. If God decided to raise the dead tomorrow, no sane atheist would cling to their beliefs - but antitheists would. It's harder to disprove the religious beliefs, but if, say, science could find a simple alternative explanation to God (i.e. to explain why there is something rather than nothing), a lot of theists would abandon their faith - except for the most zealous. The moderates on both sides are people worth engaging with - the most extreme are beyond all hope. The problem isn't with people having opinions, it's people who've mistaken their opinions for facts.

Or as Stephen Hawking put it : "Ignorance allows you to learn. Knowledge does not."*. If you've decided to believe that deities doesn't exist, then you've closed your mind to the possibility that they do. If you're agnostic, you are no more committed to believing in them than atheists, but you're also not denying the alternative. In that sense, agnosticism is the most skeptical and inquiring of the possible viewpoints.

* That is why doubt (unless it becomes all-consuming), particularly self-doubt, is not a weakness, nor necessarily a state of fear of uncertainty, but a tremendous strength and even a source of comfort.

Agnosticism doesn't say that people should or shouldn't believe. All it says is that given the current evidence (or lack therefore), anyone who claims they are certain of the existence (or lack thereof) of God may be mistaken. It doesn't say their beliefs are definitely wrong, only that they're wrong to be certain of their beliefs. To me, this is quite different - and far more accommodating - than actually pronouncing judgement on the beliefs themselves. Saying, "you're certainly wrong" is very different from, "you're wrong to be certain".

Well, after that extremely lengthy preamble, I think we're finally ready to get to the heart of the matter.


APPENDIX : Feel free to skip ahead unless you're an enthusiast and really enjoy debating the nature of atheism.

In a very interesting discussion, a couple of points were raised on whether atheism is a belief :
1) Re : the mushroom-farming invisible goat - isn't that like saying you can believe in tables ? Your definition of belief could apply to anything, making it meaningless.
Hopefully readers won't get that impression when reading this in its proper context. Of course you can't believe in tables, because their existence is a certainty. But you can believe in things for which evidence is lacking which are later proved to be true. Hence the point stands that sheer belief neither makes a thing true nor untrue.

2) It's a logical absurdity to say you can believe that things don't exist. It's like trying to prove a negative; you can't distinguish between things which have no existence. Therefore you can only lack belief that they do exist.
I never really established what the questioner was driving at here. Belief is not necessarily at all logical. You might not be able to prove a negative, but you can still believe one. And certainly it's possible for the human brain to believe in specific non-existent things. Another way to phrase it, if you really insist that belief has to be in something, would be to say that someone who believes God does not exist is someone who believes God is fictional.

After thinking it over, I wonder if the questioner is a non-native English speaker slightly misinterpreting the word "exist". This is colloquially understood to mean, "have physical reality" - if I tell a child that Santa doesn't exist, they will know I mean, "Santa is imaginary". These two statements are identical in contemporary English. I would speculate that the questioner was trying to use "exist" in a very much stronger sense, to include the concept as well as the thing itself. In that case, telling a child that Santa doesn't exist is obviously a logical absurdity, because of course the concept of Santa most certainly does exist.

EDIT : After thinking it over some more, I realised that this is completely absurd. It's perfectly possible for things to not exist : buildings get knocked down, people die, things burn, bombs explode - all of these stop existing. So in when evidence is lacking as to whether something exists or not, it's perfectly possible and valid to hold the opinion that it does not exist, because non-existence is a real state. That things which don't exist can't be distinguished from one another is wholly irrelevant.
Or to put it another way, this idea is like saying, "I'm not saying I believe Elvis is dead. I simply lack belief that he is alive".

So yes, atheism absolutely can be a belief that deities don't exist. Note the emphasis. I am absolutely NOT trying to say that all atheists are believers of a different sort - not at all. The rest of the article, however, if focused on that subset that are believers.

Saturday, 22 November 2014

Don't Fear the Feminists

I've always thought of feminism as a rather simple thing : the idea that men and women be treated equally. Yet in recent weeks there seems to have been a growing influx of anti-feminist rhetoric flitting about my Google+ stream, and it's time to do something about that. Much like those of the evangelical atheist ilk that treat all religions as morally equivalent to the mass human sacrifices of Aztec Mexico, so certain people seem to think that feminism is an idea that's really quite different to what it actually is.

This is a large, three-part article. It has to be, because this is a complex subject. In this first section I'll look at feminism and why it is - perhaps surprisingly - not actually incompatible with objectifying women; in the second part I'll examine what this means in practise; and in the third part will be a case study of the trigger for this article : shirtstorm.


1) What the heck is this "feminism", anyway ?

There are definitely mixed messages coming from the feminists. That's because feminism is an ideology, not a religion or political movement. Still, sometimes I can sympathise with Principle Skinner :


Don't worry, Seymour, there's an easy way out of this quagmire. In my view, "treated equally" really means with "equal respect". People are individuals and generally want to be treated differently from one another (perhaps less a case of "do unto others as you would have them do unto you", and more a case of "do unto others as they would have you do unto them"*), but no-one wants to be treated like dirt. Everyone want to be valued equally, like-for-like. Treat people as individuals and don't generalise based on their gender - it's that simple.

* Well within reason. Just because someone wants a bribe doesn't entitle them to one.

"Equal respect" directly implies a meritocracy where everyone is allowed to compete equally based solely on ability. All other things being equal, everyone's opinion is equally important. But that's really all it says. It doesn't directly say anything about cheerleading, fashion modelling, the pornography industry, or heck, even the virtues of prostitution as a career choice. Rather what it says is quite simply that if these things are deemed acceptable for one gender, they must also be acceptable for the other. It does not actually say whether or not they are acceptable for any gender in the first place - that's society's choice. Feminism, as some wise individual wrote, is about elevating women, not taking men down.

Incidentally, this doesn't imply that we must demand equal numbers of men and women in the same jobs (though it most certainly does dictate equal pay for the same work). I strongly suspect that when we eventually do establish a society of truly equal respect, this is what will happen, even in careers where men and women are each currently tiny minorities - but I don't actually care about whether we have a precise 50-50 balance in all vocations. It's the opportunity that matters to me, not the end result.

Now, I sincerely hope that anyone reading this will have agreed that equal opportunities and equal pay for men and women are fundamentally Good Things (if we can't agree on that, I don't think we can be friends). It doesn't matter whether you look like Brad Pitt, Scarlett Johansson, or the back end of a bus - or whether you're a raging heterosexual, as gay as Dale Winton or as liberal as Captain Jack Harkness : your success in life should be determined by ability. Nothing else matters, except of course whether or not you treat others with the same amount of respect that they treat you.

Does this mean everyone should be treated in exactly the same way in all situations by everyone else ? Of course not, any more than you would go around assuming that everyone is an expert in neuroscience or has the same passionate hatred of elephants. And that leads us on to the area where so many people, both men and women, seem frightfully confused about feminism : sexuality.

Few people, if any at all, would complain about the following set of images :




Yet people most assuredly do complain about images like these :




Why is that ? Is there anything intrinsically different about the two sets of images beyond the genders displayed ? I would argue "no". I never heard anyone complain that the first images are in any way demeaning or that they treat men like objects for female gratification. Nor does it in any way disturb me that such images exist and that women enjoy them (indeed, certain female friends of mine have described, with consummate tact, the man in the first image as inducing a "lady boner"). Why should it ? Men and women find members of the opposite sex attractive, and as a short, scrawny yet slightly flabby nerd I don't feel in any way diminished by the use of uber-muscular young men as sex objects for women. More on that in part two.

Yet these are precisely the sort of complaints that are made about the second set of images. But it's not the images themselves that makes these complaints valid (for that, we must take a wider view). Image for image, it's extremely difficult, if not impossible, to say whether one is treating one gender more respectfully than the other. Remember, if we're assuming "equality" to mean "equal respect", the actual way in which we treat the genders is not important : the only thing that matters is that if we objectify one gender, we also allow objectification of the other*.

* I suppose in principle "equal respect" could mean "zero respect for both genders", but this trivial to dismiss. No-one wants to live in a world where the only thing that matters is how attractive everyone is... well probably not, anyway.

Now I have to make a very important point before we proceed any further. I am going to use the term "objectify" to mean, "to ignore all other qualities besides physical attractiveness". This is not the same as the way some people use the term, which is more like "to assume that a person has no other qualities besides physical attractiveness". Unfortunately the difference between the two is considered so subtle there isn't even a good alternative English word, but in fact it isn't subtle at all - it's critical. That should become more obvious as we go on, if it isn't already. But please, dear reader, do keep this in mind - otherwise you may think I'm saying something completely different to what I actually mean.

Right, so, do those above images objectify genders ? You betcha. Is this a problem in and of itself ? Arguably, no. Is this a problem in society more generally ? Hell yes - and it's only a problem for women. I'll return to this more in part two, but first I want to say a little bit more about objectification.


People are sexy, deal with it

I don't have a problem with objectification per se. A woman who chooses to objectify herself for male gratification is no more immoral than a man who does the same for women, and nor are men who enjoy objectifying images of women any more immoral than women enjoying those of men. The problems are twofold, and related : 1) the much, much greater extent to which society objectifies women than men; 2) the fact that many men seem to extrapolate wildly from the women in these images that all women exist solely for their own enjoyment. This extrapolation is absurd as saying that because Chris Hadfield can play the guitar, he cannot also be an astronaut. It's as mad as a bag of clams, but that's the world we live in.


Put simply, the objectification of women (partly due to the sheer amount of it) has led many men not to conclude merely that women are attractive (which is all an image of an attractive woman intrinsically says), but to conclude that women are attractive and that's all they are. In fact, reducing one individual to their physical characteristics for the enjoyment of the opposite gender does not, in and of itself, imply that all members of that gender have no other value. It does not mean that the particular person on display has no other value either, only that they have chosen, temporarily, to ignore their other qualities - not eliminate then. They're not toys, for crying out loud.

Speaking of which, a pretty close analogy would be the similarly-decried video games. The notion that video games are a direct cause of violent behaviour is patently absurd. I play (or used to, a lot) Total War games, in which battle casualties can often run into the thousands. I don't know the total number of casualties I've inflicted, but it's certainly in the tens of thousands, probably in the hundreds of thousands, and very possibly in excess of a million. As for more up-close-and-personal games, I haven't the foggiest idea how many people I've immolated, punched, beheaded, riddled with bullets (and in one case with high-velocity gnomes), hacked with a sword, and brutally beaten to death with assorted blunt instruments. These things are fun to do in games because they're not real. They no more induce me to go on an orgy of death and destruction than they make me want to start the world's first floating circus and start wearing a tutu : there is precisely zero correlation here. Zero. Nada. Zilcho.

Similarly, objectification in principle does not lead to sexism (it doesn't when women objectify men, after all). If you can differentiate between the fantasy world of gameplay and reality, you damn well ought to be able to tell the difference between a woman posing for a photograph and the idea that women are somehow subordinate to men. There ought to exist the same vast chasm between enjoying killing thousands in a video game and wanting to massacre people in reality, as between enjoying a photograph of the opposite gender (or indeed any form of adult entertainment) and assuming they're all somehow inferior to you. You ought to possess the modicum of intellect needed to realise that people aren't toys because they chose to dress (or undress) in a certain way - yes, even (especially) when they're deliberately doing it so that you can enjoy them.

You can't tell me that watching elephants trample people to death in a video game isn't fun. You also can't tell me that it is fun in reality. Granted, the analogy isn't perfect - attractive people are, so I'm told, also a lot of fun in reality. But in reality, killing thousands of people isn't fun because people aren't toys - exactly the same goes for disrespecting women.
Now one could argue that we shouldn't objectify people at all. A debatable point, certainly, but I don't see this working. If people find the opposite gender attractive, there will always be people willing to exploit that and happy to be exploited by it. For the sake of the extremely important reason of the survival of the species, people generally want the opposite gender to find them attractive. It is simply too small a step, too slippery a slope, from this basic truth to people making money from this.

Moreover - if (note the maximum possible emphasis here) people treat "sexploitation" images in the same way they treat video games (i.e. they don't let them influence their real-world actions), then I fail to see anything immoral here. Far better - and frankly more fun for everyone - to simply demand equal levels of sexploitation of men and women. That could either mean much less objectification of women than at present, or much more of men, or something in between.

In short, objectification (by the definition I'm using) is scarcely intrinsically worse than simply finding someone attractive. Few people could honestly say they'd don't assess someone's physical attractiveness at all if presented with no more than a photograph. No-one thinks, "I must make a detailed inquiry into the personal habits and moral values of this person before judging their attractiveness." No-one. That is nonetheless a form of objectification - a part of human nature, which, like aggression, is only dangerous if not properly controlled.


So that's the theory covered. In summary, people can be hot. Judging them on this, and even ignoring their other qualities, is not damaging in and of itself - women happily do this to men with little harm done. But assuming that they don't actually have any other qualities, to treat them like a toy... this is immensely harmful. This level of objectification is far worse, but as we'll see in the next section, in practise even just ignoring their other values can be seriously degrading if it's allowed to run rampant. We'll also examine the ways in which things are much worse for women, and why when women objectify men this isn't damaging for men.


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