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Originally posted by On7a7higher7plane
reply to post by Lady_Tuatha
I think it's more of a matter of culture and upbringing.
People aren't getting stupider naturally, it's just that our school system and culture promotes memory and does not promote other important factors in intelligence.
Originally posted by Astyanax
This selection is natural, not artificial, because it is not intended by the creators of the environment.
I disagree with this view here, it simply removes any responsibility from those with the power to plan and act on it. I will go as far as state that the artificial environment was not strictly planned but has been undoubtedly evolving with and interdependent of the human society own evolution. I can tell that human evolution is today except in very remote regions anything but natural...
Originally posted by Astyanax
The environments we live in now are largely artificial, no question. However, an artificial environment exerts selective pressure on its occupants just as surely as a natural one does.
This selection is natural, not artificial, because it is not intended by the creators of the environment - in fact, they don't so much create it as evolve it. Even when there is a deliberate attempt to influence health or behaviour by means of the environment – that is, some kind of 'social engineering' – the results very rarely come out as intended.
Evolution by natural selection doesn't stop just because an environment is artificial. In fact, it doesn't ever stop. We are still evolving, and we will continue to do so until we become extinct.
All the same, it is impossible to believe that any noticeable, genetically-driven change in intelligence could possibly have occurred in our species over just five generations. Victorians were no smarter than we are; neither were they, and nor are we, any smarter than any well-nourished ancestor of ours 15,000 years ago.
This is junk science, or junk science reporting at the very least. How were reaction times measured then? How are they measured now? The difference in measurement techniques alone could easily account for the difference.
Dr Michael Woodley, who led the study published in the Intelligence journal this month, identified the trend by comparing reaction times from trials conducted by Victorian scientists against those carried out in recent decades.
Originally posted by Astyanax
The environments we live in now are largely artificial, no question. However, an artificial environment exerts selective pressure on its occupants just as surely as a natural one does.
Originally posted by ANOK
Hmmm if something is done by social engineering, conditioning, I don't consider that natural. Because it would not happen naturally.
ANOK:
Creators of the environment? To whom do you refer?
ANOK:
Artificial conditioning is not natural selection. An example that is natural Human evolution is our physical size, we are much taller, on average, than we were even one hundred years ago.
If you study a little history it becomes obvious they were smarter than us in general, without that 'junk science'.
Originally posted by Astyanax
Human beings are part of nature, and nothing we do can ever be unnatural.