The theory of (D)evolution?

Recommended Videos

Fingerprint

Elite Member
Oct 30, 2008
1,297
0
41
Okay, first off I'd like to say sorry if this post reads disjointedly as it's really more a collection of half-formed thoughts based on the same subject.

As a quick prelude, Mazty made a thread a little while back asking about the subjectivity of looks/beauty and how it (beauty) was viewed differently by others. Now, as far as I can tell, (and I agree) the general consensus was that more attractive people were (more) attracted to people who are deemed to be of similar looks - i.e. a good-looking girl is more likely to go for a good-looking boy - and vise-versa. Basically it's the idea of leagues, as in way out of your... This is what got me thinking about the whole thing.

Right, moving on. Now, Darwin's Theory of Evolution - as we all know - simply says that evolution is the "survival of the fittest"; i.e. "natural selection". But "fittest" is a pretty loose term, it can mean anything from strength to height etc., but assuming - for now - that we are using "fittest" in terms of health & looks, can it be said that humans are defying the very theory that we base so much scientific knowledge on?

Now that point clearly needs & deserves an explanation; so here goes. Modern medicine is at a stage where we can keep people with chronic, life-threatening diseases alive for much longer than they might otherwise do, (I've just searched and couldn't find anything immediately, and with nothing coming instantly to mind you'll have to use your imagination - it's 2am, give me a break). So if that's the case and these people with (genetic) life-threatening diseases, with the help of medicine, can now have children and pass on their faulty DNA to the next generation, isn't that going against Darwin's Natural Selection? If the theory is correct shouldn't these genes be being slowly removed from the gene-pool? To use an example, in nature, when a lioness gives birth to a cub with a defect, handicap, etc., then that cub will die at a young age, without reproducing and therefore preventing that gene from being passed on. Whereas humans with faulty genes are allowed to reproduce freely.

According to that it's possible to argue that Darwin's theory doesn't (fully) apply to us as a species because surely, if it did, then in the next few thousand/million years (assuming the world/species lasts that long) there'd be no people with genetic disorders, no-one with a weak immune system and everyone would be good-looking, etc. - good looking because if the theory did/does apply to us, then the more attractive are more likely to procreate and so - in theory - should, one day, outnumber people who aren't so attractive.

Okay, so next, the subjectivity of looks. Humans, as with all species, have the ingrained desire to mate and reproduce. But with looks being what they are - some people are just better looking than others, it's a simple fact of life - they make a big difference to our chances of getting laid. However, if attractive people sleep around and end up settling for someone who is much less attractive (now I don't find her particularly attractive, but anyway) then aren't they going against the theory of evolution? Of course beauty is in the eye of the beholder and as there is not exact system for measuring looks it can be said that this point doesn't hold much water, but nonetheless if someone who is evolutionary speaking fit reproduces with someone who is, again, evolutionary speaking, unfit then it's theoretically preventing the species from evolving as perhaps it should.

So is it a case of subjective looks, (less fussy (sexual) partners,) and modern medicine preventing the species from evolving? Has it got to the point where the species is simply reproducing for the hell of it and not allowing the theory of evolution to take effect on us - is it no longer just "the fittest" who are adding to the gene-pool?

Hmm, this thought just popped into my head, is there a case to say that modern medicine, by helping people with the chronic (otherwise) life-threatening illnesses to live and have children, are just making their lives in the future harder? By keeping the illness alive in the current and next generation, aren't they (potentially) giving themselves more work as they will have to keep the next group of sufferers alive too?

I suppose the overall question is, whether modern medicine, the subjectivity of looks, etc., is unwittingly disproving Darwin's theory of evolution?

P.s. I feel I should probably mention that this isn't a rant to say that less-attractive, disabled or chronically ill people shouldn't have sex & have children as I believe they have a right to, it's simply a case of having too much time to think about this sort of thing. Oh, and yes, I do believe Darwin's theory to be correct.

Edit:
Right, I'm going to make this very clear, this post does not necessarily represent my views, it is simply a question I am putting to the community - as I said to Neutral, it's a case of thinking out loud. I'm not sure that a lot of this is correct (I am yet to be convinced either way), as not only is this focused on a very small fraction of Darwin's theory but also as there are no standards of looks & the fact that without modern medicine we lose out on a lot of possibly useful (random) genetic mutations that would otherwise benefit us as a species, and that's before we start talking about other traits.

And another thing, just to clarify, this isn't about the actual de-evolution of man, if the post is right then it'd be more about a stalemate in evolution, or for that matter, having reached the peak of it - I hope that's cleared a few things up.
 

Lordmarkus

New member
Jun 6, 2009
1,383
0
0
The headline made me think of Christian right (shudder) but afterall I guess you got a point in that wall-of-text of yours.
 

pantsoffdanceoff

New member
Jun 14, 2008
2,751
0
0
Natural Selection just doesn't plain apply any more because the government/society has an unnecessary urge to help the incompetent.
Case in Point: Octomom.
 

Ultrajoe

Omnichairman
Apr 24, 2008
4,719
0
0
pantsoffdanceoff said:
Natural Selection just doesn't plain apply any more because the government/society has an unnecessary urge to help the incompetent.
Case in Point: Octomom.
That 'urge to help the incompetent' is an evolutionary trait we picked up, because it just happens to be one of the things that makes humanity so damn powerful as a species. Abandoning it? Now that's De-evolution.
 

Fingerprint

Elite Member
Oct 30, 2008
1,297
0
41
pantsoffdanceoff said:
Natural Selection just doesn't plain apply any more because the government/society has an unnecessary urge to help the incompetent.
Case in Point: Octomom.
Well that's kinda my point. Are we at an evolutionary stalemate with ourselves because we are making sure that people, who otherwise wouldn't survive, are able not only to survive but also to reproduce and pass on faulty genes?
 

pantsoffdanceoff

New member
Jun 14, 2008
2,751
0
0
Ultrajoe said:
pantsoffdanceoff said:
Natural Selection just doesn't plain apply any more because the government/society has an unnecessary urge to help the incompetent.
Case in Point: Octomom.
That 'urge to help the incompetent' is an evolutionary trait we picked up, because it just happens to be one of the things that makes humanity so damn powerful as a species. Abandoning it? Now that's De-evolution.
I completely understand your point but you and I have different views on humanity which I doubt will be resolved but I need to put a metaphor in BECAUSE I CAN. If there are two runners and one of them insists on wearing lead weights due to principle, which runner is going to win?

piers789 said:
pantsoffdanceoff said:
Natural Selection just doesn't plain apply any more because the government/society has an unnecessary urge to help the incompetent.
Case in Point: Octomom.
Well that's kinda my point. Are we at an evolutionary stalemate with ourselves because we are making sure that people, who otherwise wouldn't survive, are able not only to survive but also to reproduce and pass on faulty genes?
Watch [i/]Idiocracy[/i] it's pretty much a documentary on this.
 

NeutralDrow

New member
Mar 23, 2009
9,097
0
0
piers789 said:
Stop.

Just...stop.

First things first: natural selection. Natural selection is inescapable. You rightly said that "survival of the fittest" is very loosely defined, and then you went right ahead and rigidly defined it. All natural selection does is create changes in a species (which randomly appear) based on the rate they reproduce. More helpful traits that pop up randomly in a species gradually become the norm, because the ones who have them are the ones who reproduce.

Your thing about life-threatening illnesses is BS for a couple of reasons. First off, just because we keep people alive when they normally wouldn't without the advent of modern medicine. And that's just it: those sorts of illnesses are no longer subject to natural selection because (get this) we've changed to the point where they're not reproductively threatening. Having them doesn't hurt our overall chances to bang each other and pop out babies. Secondly, most of the illnesses you're referring to only strike people generally too old to be genetically viable anyway. It's why cancer was never a problem before: it usually strikes far too late in life; those who have it have already had kids. Therefore, susceptibility is not a genetically undesirable trait. It simply doesn't matter.

Key thing here: humans aren't evolving because we don't need to. That's the kicker about evolution: if it's happening, it's because something bad is happening. Humans not only have a kickass set of biological traits that lets us adapt to an asston of different environments, we have a concurrent level of social evolution that basically makes the world our *****. We're not going to evolve any time soon, and when we have to, it'll be because something truly cataclysmic is happening, and we're, as a whole, fucked anyway.

Second thing: there are very, very, very few universal standards of beauty. Basically, if someone looks generally healthy, they're attractive. Beyond that, it's subject to not only the extremely large cultural gaps in the world today, but over our entire history, as well. Secondly, not everyone is a sun-outshining venus or moon-eclipsing adonis. Average-looking and ugly people have sex, too.

Key thing: standards of beauty change constantly, always have, and have never applied to the majority of people. That hasn't stopped people from being horny.


Conclusion: your argument is unfounded and based on a very flawed understanding of the theory of evolution. Good day, sir.
 

Ultrajoe

Omnichairman
Apr 24, 2008
4,719
0
0
pantsoffdanceoff said:
Watch [i/]Idiocracy[/i] it's pretty much a documentary on this.
http://www.xkcd.com/603/

Really, no. Just no.

Humanity isn't in a race, there is no finish line. We're not weighing ourselves down by helping each other, that's like saying your Soccer team will kick more ass if you removed all but the 5 good players, including the goalkeeper. In fact, that metaphor is flawed because it doesn't even come close to explaining how... ignorant that sentiment is.

EDIT: Beaten to the punch.
 

Fireshot25

New member
Jun 29, 2009
28
0
0
Going with your de-evolution topic I recently saw a movie on comedy central(forgot the name)with a pretty interesting opening. It gave two scenarios: one of a steroetypical white trash family and another one of a intelligent uppermiddle class family. The white trash family made a several "mistake" children. Then the dad had a couple affairs and had more children. Then those children grew up with the same morals as the dad and had even more children. Then those children had children etc. Meanwhile the other family was doing what they though was the smart thing and waited to have children. They wanted to but kept putting it off because the dad was laid off and then the economy went bad. Finally the dad died. So the white trash clan reproduced hundreds of times and passed on the mostly bad genes that they had. And the family with the good genes never reproduced. So its not survival of the fittest anymore, its survival of the ones who have lots and lots of sex.
 

New Troll

New member
Mar 26, 2009
2,984
0
0
Fireshot25 said:
Going with your de-evolution topic I recently saw a movie on comedy central(forgot the name)with a pretty interesting opening. It gave two scenarios: one of a steroetypical white trash family and another one of a intelligent uppermiddle class family. The white trash family made a several "mistake" children. Then the dad had a couple affairs and had more children. Then those children grew up with the same morals as the dad and had even more children. Then those children had children etc. Meanwhile the other family was doing what they though was the smart thing and waited to have children. They wanted to but kept putting it off because the dad was laid off and then the economy went bad. Finally the dad died. So the white trash clan reproduced hundreds of times and passed on the mostly bad genes that they had. And the family with the good genes never reproduced. So its not survival of the fittest anymore, its survival of the ones who have lots and lots of sex.
That was Idiocracy.

And either mankind will destroy itself, Earth will destroy us, or some other race will come and purge us way before any noticable "de-evolution" could ever take place.

Unless we evolve through it.

And mankind is till evolving as a whole. We continue to grow and over-populate the world each day. We learn new things and continue to teach these new concepts or ideas to the rest of the world. We not not only continue to be the dominearing species on the planet, but we become stronger or "fitter" each day making less and less likely for any other species to knock us off our pedastal. That's evolution.
 

Delicious

New member
Jan 22, 2009
594
0
0
How is modern medicine not a part of natural selection? Being able to recover from normally deadly illnesses and injuries seems to be a pretty "fit" trait to me.

Think outside the box. Just because it is made by us doesn't mean it suddenly doesn't count.
 

Fingerprint

Elite Member
Oct 30, 2008
1,297
0
41
NeutralDrow said:
piers789 said:
- snip -
Yes, my knowledge of the theory isn't perfect, but I do have a pretty good understanding of it. And just for the record, it's not a view I hold, I don't think a lot of what I said can possibly be true, because as you and I both mentioned, natural selection, fittest, etc. is a very loose term and as you, rightly, pointed out, I was focusing on one specific part - it was more just thinking out loud. (I probably should have mentioned that in the OP.)

But anyway, as you completely blew my post out of the water I feel I should at least try to defend myself.

Whats to say that we don't need to evolve anymore? Sure, we as a species, are pretty adept at surviving - just look around - but at the same time we are not perfect. We waste copious amounts of potential energy from our food; male pattern baldness serves no purpose (to my knowledge) whereas a full head of hair is considered to be "more attractive"; we still get sun burnt; the list goes on. So why shouldn't we evolve to be rid of these traits - you can say because it's not necessary but surely natural selection will and should, over time, remove un-necessary traits and replace them with useful ones.

As for your paragraph about looks, universal standards etc., I feel I should reiterate by saying that I agree, looks are subjective - there are no two ways about it - so based on that alone most of my post can be ignored as what one person thinks is attractive and therefore worth passing on to others is not necessarily what the next person might think. But whats evolutionary fit might not be what we look for every time - and that's (in my opinion) a valid point to say that in that respect we may not be following natural selection.

But as for what you've said about genetic susceptibility, how have we changed that stops it being reproductively detrimental? Maybe not you, but I'm fairly sure that there are people out there who would/will adopt a child instead of giving birth to a child that they know/have been told will eventually have a serious genetically inherited disorder.

And yes, I totally agree that not everyone can be a stunningly attractive girl/guy, and yet they still get laid. They just have a little less chance of getting partners who are generally accepted (or even in their eyes, considered) to be better looking than they are and therefore they won't be able to pass on their genes to the best possible mate - it won't stop people getting laid but that not what I'm getting at.
 

Internet Kraken

Animalia Mollusca Cephalopada
Mar 18, 2009
6,915
0
0
Ultrajoe said:
pantsoffdanceoff said:
Natural Selection just doesn't plain apply any more because the government/society has an unnecessary urge to help the incompetent.
Case in Point: Octomom.
That 'urge to help the incompetent' is an evolutionary trait we picked up, because it just happens to be one of the things that makes humanity so damn powerful as a species. Abandoning it? Now that's De-evolution.
Wise words

Besides, you can't really determine who has superior genes. Genes that are considered superior now could be inferior after our current habitat changes. You always want to have genetic diversity in a population.
 

Pendragon9

New member
Apr 26, 2009
1,968
0
0
Compassion for your fellow being, inferior genes or not, is "survival of the fittest".

Without it, we'd nuke eachother without a care in the world.
 

Internet Kraken

Animalia Mollusca Cephalopada
Mar 18, 2009
6,915
0
0
pantsoffdanceoff said:
Watch [i/]Idiocracy[/i] it's pretty much a documentary on this.
I thought Idiocracy was about the decline of humans culturally rather than physically.
 

Deef

New member
Mar 11, 2009
1,252
0
0
Steven Hawking would disagree.
http://www.dailygalaxy.com/my_weblog/2009/07/stephen-hawking-the-planet-has-entered-a-new-phase-of-evolution.html
 

TheBluesader

New member
Mar 9, 2008
1,003
0
0
Clearly absolutely no one here has even an elementary understanding of how evolution actually works, and/or the natural mechanisms that influence the successes of certain biological traits.

I could spend a post trying to correct all of this, but I get the impression that this whole thing is a result of someone staying up too late reading Nietzsche, so it doesn't really matter.

Suffice it to say, humanity is not now and probably never will be able to interfere with our own evolution, unless we start playing genocide (of ourselves and others) again. Evolutionary changes happen over millions of years, so a century of good prenatal care isn't going to do much except make the population bigger. Bigger pool of genes you have, more mutations you will have, things go on as they always have, but now more people get to play the Breeding Game than would naturally. That gives us a slightly better chance for long-term survival than we'd have if our population was small. Unless an asteroid hits and changes the game completely, which has happened about 12 times. So it's not that big of a deal.

And so-called ugliness and physical weaknesses are not signs of biological inferiority. Life makes its own way through all kinds of things. We developed big brains and symmetrical faces because they worked, and if the opposites start to work better, then we'll get those or die out.

That's all there is to it, really.