I don't agree.
The fact that you can't say true, when the answer is obviously true, seems to indicates what I think to be the case.
I think people use broad terms for convenience - in order to "take a little here, and a little there", and still be in the game.
It's like playing a baseball game, where the touch base is five times the regular size.
I see it, not only in this case, but in other terms, including the use of the term evolution.
It's easy to say something, but when it comes to explaining it, one begins to see that the terms are just used loosely, because "it really doesn't matter as long as it works for the proposed idea"... imv.
Well, I think it's simply a matter of looking at introductory material that is very basic and broad, and complaining that it doesn't explain things in technical detail.
I think natural selection needs to act, because it is proposed as the driver for evolution, and we can't have a mindless driver that doesn't just drive randomly.
Can you imagine a driver-less car with no AI? It's path would be random, not guided.
Can you clarify something for me? Do you disagree that natural selection happens?
However, I am not really interested in what people say, if they can't explain it. That's like asking me to believe in what others believe, without understanding why they believe it.
Note though, that Evolution 101 is not the only site that says "natural selection acts on variation".
A
quick google will reveal that.
We will also see from
this source...
* Natural selection acts on the phenotype, the characteristics of the organism which actually interact with the environment...
* Natural selection can act on any heritable phenotypic trait...
* Natural selection acts on an organism's phenotype, or physical characteristics
* Natural selection is here understood to act on embryonic development to change the morphology of the adult body.
* Natural selection acts on individuals...
As with the Evolution 101 site, Wiki is also intended to give general overviews to laypeople, rather than fully detailed, highly technical coverage.
So natural selection acts on almost everything, apparently.
Well, we do see it operating, all the time. One of my early posts to you in this thread was a description of an experiment we did as undergrads that shows how trivially easy it is to observe natural selection in action.
I can certainly understand a few of those expressions, since they indicate an effect on - not what makes it happen, but something else.... like the example I gave of the weather. It produces an effect.
So I can understand the conditions that form natural selection, and what drives it in one direction or other.
It may be, I don't fully understand it, but if it is not simple to explain, then perhaps it's not simple to understand, as some claim.
It is very simple. I think you may just be getting too wrapped up in the way non-technical sources cover the subject and the specific words they use to do so. What's important is that you at least understand what natural selection is and how it works. I mean, it's not like there's going to be a vocabulary test at the end of all this!
In my opinion, Evolution 101 explains things in a very simple way.
Right, so try and not get frustrated because they don't explain things in a very technical way.
I understand how it explains natural selection
here, but it also makes statements I don't agree with, and there are valid reasons not to agree. It's not a case of my not wanting to agree.
It's okay to not agree with something. That's fair, isn't it?
Sure. I'm curious though....what specifically on that page don't you agree with? Is it the
concept they're explaining, or is it just the
way they explain it?