Avatar Roku said:
Deschamps said:
Dann661 said:
However, I do not think everyone should be forced to believe in evolution, if people don't want to, why make them?
Belief has no place in matters of science. If something can be demonstrated to be true, then you either accept it as truth, or you are a fool.
I think some problems stem from calling evolution a theory. To people who don't understand it, it gives the impression that there's still a good chance it could be wrong. While there are missing links here and there, evolution has a pretty sound case.
Exactly. People don't understand what a scientific theory really is. I've talked to people who thought that, if Evolution was really as rock-steady as it is, it would be a Law.
It does not work like that.
A theory does not become a law. They describe two different things. For (extremely simplified) example:
Law of Gravity: Things fall. Period. Immutable.
Theory of Gravity: Things fall because...
I always hate having to explain that. And not only because the only example I can easily use is not a very good one.
That's not really accurate either. Principally, there's no such thing as a scientific 'law' in the way you're describing, because science is fundamentally incapable of proving something to be true.
This gets to the heart of what science is as a philosophy, and not everyone agrees with it in practice, but what it comes down to is that science can only disprove things, not prove them.
So, things like the law of gravity, and the second law of thermodynamics are NOT immutable, set in stone, or beyond dispute.
They're simply so fundamental, and have withstood scrutiny for so long that it is exceedingly unlikely that they are incorrect. (and any evidence that they are is generally assumed to be due to experimental error or unaccounted for forces rather than the 'law' itself being wrong.)
The reason for this is self-evident.
How many experimental results does it take to 'prove' that things always fall when dropped?
- You can't. You can get a million results. A billion... More. And you still wouldn't know for certain that the law always holds.
How many results (assuming there aren't measurement errors involved) does it take to
disprove it?
- Just one. A single contradictory result shows that something is false. Of course, in practice you would need to verify this, and you'd then be left trying to explain what's going on, but in principle, one result is all you need.
And this of perhaps goes a long way to explaining why the most critical aspect of a scientific hypothesis is falsifiability.
What would it take to prove that it's wrong?
Anyway... You probably know all that, so I don't know why I felt the need to point it out... >_<
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As for evolution, one of the subtler, but nonetheless quite frustrating things about what a majority of people's understanding of it is conflating evolution with 'progress'.
You see it in such statements as being 'more evolved', and people that seem to think it's something akin to the levelling system in RPG's.
Or, that we are evolving 'into' something more advanced, or that we'll keep on getting more intelligent, or 'better' than we were...
And
what, exactly, does devolution mean? it's non-sensical. Even if we became identical to chimpanzees again, it'd still be
evolution, not
devolution.
Or for that matter, that 'survival of the fittest' implies that one specific set of traits some people have is inherently better than others (and seemingly remains so in any and all circumstances)
I guess that gets back to how humans somehow think they're the best thing ever a lot of the time, but it really misses the point.
The problem is, all of this implies evolution has a goal. Some end condition it's aiming for. Some
design to it.
Which simply isn't true.
A virus is no less evolved than a human. It's just different.
Survival of the fittest is entirely relative, and just about anything could in principle be the 'fittest' if the circumstances we live in change.
More importantly, the only 'goal' of evolution is survival itself. This means if a species evolves, it's become better able to survive in whatever circumstances it is confronted with.
If those circumstances change, so will the species.
But what that change will involve, will depend entirely on what the new environment is like. NOT on some pre-ordained plan to make things more complicated or 'better' than they were before.
We could get stupider, weaker, smaller... And any number of other things we would consider 'negative', and
still it would be evolution, and depending on circumstance, might even make us 'fitter' as a species...