At 10/1/09 04:37 PM, Rabid-Animals wrote:
In other words, evolution would prevent a land-dwelling mammal that evolved from a fish from developing gills. Obviously, this is incredibly over-simplified, but I hope it clears things up a little.
Wow. No. Evolution wouldn't do anything of the kind. A land-dwelling mammal that developed gills would not be "prevented" by evolution. If a land-dwelling mammal were to develop gills, it would require an extreme expenditure of calories to maintain these useless organs. Or else the individuals who had these organs would find some use for them. A land-dwelling mammal that developed gills would likely be evolutionarily advantageous, as it would fill a new niche as a semi-aquatic mammal capable of spending vast amounts of time underwater. But only if the opportunity of both the mutation and an environment in which to take advantage of this mutation exists.
At 10/1/09 04:46 PM, Sheizenhammer wrote:
At 10/1/09 04:14 PM, Bijhan wrote:
There is nothing guiding evolution.
Environmental selection. The definitions of guiding and selecting may be different, but the result is the same.
B) YOU DON'T HAVE TO HAVE KIDS YOURSELF TO PARTICIPATE IN EVOLUTION
OK, let me put it this way: Have you ever seen a properly autistic person successfully have their own kids OR care for anyone else's kids? Didn't think so. This point does not apply to fully autistic people regardless.
People with autism don't just think outside the box, they think of the box in a wholly different way, and it may save the human species some day.
Define 'the box'. There's no real line between normal thinking and abnormal thinking, as was the point of a large chunk of this thread in the first place. You don't HAVE to be autistic by anyone's measure to have original thoughts.
I'll address this on a point-by-point basis.
1) Durrrrrr. Environmental factors don't guide evolution. They don't make decisions, and they don't try to accomplish things. They are parameters. The checkers board don't move the pieces; just tells them where they can go and where they can't.
2) Autistic savants don't have to help pay bills to enrich the human community, first off. The human lust for art and expression is a positively adaptive trait that has led to extremely complex behavior. Without literature there would be no psychology; without sculpture no architecture; and without painting no physiology. Autistic people are not ALWAYS positively adapted. Some are. Matt Savage, Daniel Tammet, and Kim Peek have made plenty of money for their family and helped enrich the lives of people across the world. So no, not every autistic person is going to be able to perpetuate their own genes. But read what I said about ants again, and this time pay attention. Contributions to the SuperOrganism (read: Humanity) help perpetuate the species. That's evolution, baby.
3) You're still thinking in the box, boyo. I'm not talking about original thought, I'm talking about SIDEWAYS thought. Anyone can have a thought that no one else has ever had. But think of the way thoughts are formed. I'm not going to make some kind of paltry analogy because the process is complicated and elaborate. Surely it's different for every person. Our thoughts are all similar enough, though, that we can condense them into little squiggles on a surface. Or we can bark them out in complex wiggling of our tongues and throats. We have the ability to translate our thoughts into language, and translate language back into thoughts. The more autistic a person is, the less able they are to do this. Why? It's not the translator that broken.
This is a gross oversimplification, but here goes. You make a machine that can translate any English you put into it, into German. You put in an English dictionary, poof, it's a German dictionary. This machine is the part of our minds that understands language. English is our thoughts, and German is what we give to one another to communicate. In this bizarre analogy. Anyway. Autistic peoples' translation machine is fine. It will translate any English into German just fine. But they don't have English to put into it. All they have is French. And when you put French into the translation machine, it doesn't come out German. Because you didn't put English in.
A functioning autistic person is someone who'd figured out how to read whatever comes out when you try to translate French into German using an English-to-German codec.
In a world of this strange, strange analogy not many people have much use for French at all. But that doesn't mean they won't.
To put it another, perhaps more sensical way, autistic people do not have different thoughts from other people. That's not what I'm saying. I'm saying that the method in which they devise thoughts is distinct from the most common way, and often distinct from one another. There is no "Rosetta Stone" (the historical artifact, not the software) for translating their thoughts into the types of communication we all take for granted. That is what isolates them. Many have learned to communicate in spite of this, using vastly more complex cognitive mechanisms to find communication patterns in order to convey simple concepts. Others have not.
Just because you don't know what good a trait will do the individual doesn't mean it won't benefit the population.
HAVING TWO HEMISPHERES IN YOUR BRAIN: The Original Autism
Once upon a time there were organisms roaming the Earth that had only one major portion of their brain. This made things easy. They had simple instructions, and they followed them. There was never a conflict or a doubt or a worry in their heads, because they were unable to compare different points of view. Then, one day, an organism appeared on the Earth with two pieces of brain. Each pieces of brain was perfectly capable on its own. But this did not give the organism quicker speed, no no! In fact, it reduced the reaction time of the organism. Now, instead of having a gut reaction to absolutely everything, this organism could weigh the options, consider different outcomes, and debate the merits and demerits of different courses of action.
Many of these organisms were snapped up by predators as they peered into the carnivore's jaws, wondering what to do.
Then, one day, all of the organisms were being chased off the edge of a cliff by a large predator. The stupid one-hemisphere brain'd organisms just had the one thought in their head: "Run, mothafucca!" But the two-hemisphere brain'd organisms realized, "Shyit, if I run off this cliff, I ain't NEVA gonna git laid." And instead took the elevator.
The moral of the story is that diversity in a population is never a bad thing. The trait has to already exist in the population for it to be acted upon by natural selection. EVOLUTION IS NOT THE CHANGE OF THE INDIVIDUAL.
You, sir, are both arrogant and ignorant - a soulcrushingly common affliction. Please seek professional help. From a scientist. Go to school or something. And if you're a highschooler, so help me, I will break down and cry.