Summations Only

I used to think that there might be some kind of influence of the brain on evolution.
who knows, maybe instincts are are the result of the brains infuence on epigenetics.but mainly what I think now is that evolution is just much more sophisticated than generally thought.each person has 2 parents each of which had 2 parents and so on.
after only a small number of generations that is a lot of ancestors.now suppose that each individual has a certain number of 'bigness' genes and a certain number of 'shortness' genes which it records somehow in its dna.
in each individuals dna would be recorded how many 'bigness' genes its parents had and their parents and their parents and so on.
from this information could be built up a histogram of gene frequency.
now suppose that every individual with more than a certain number of 'bigness' genes dies before producing children. (because they are too big to survive)
the histogram should show a sharp drop off at that point.
this information could conceivably be used by the organism to determine how tall or short it should be. If it had too many 'bigness' genes it might turn some off or do something to tweak how it responds to the genes. (perhaps through epigenetics)thats just a purely hypothetical example to show how such information could conceivably be useful to the organism. Edited by granpa, : No reason given.Edited by granpa, : much clearer

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One thing you might consider is that the farther back you go, the more common ancestors you have.

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Do the math and see what I mean.

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If we followed your line of reasoning we would have far more ancestors than we've ever had living people in a surprisingly short time.

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well duh.

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While the role of epigenetics is still being explored, natural selection seems to have served quite adequately to eliminate the unsuitable extremes over time. It is unlikely that it will be entirely, or even largely eliminated from the theory by future discoveries concerning epigenetics

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I thought I was describing natural selection.