Not only is the timescale too short (human societies change drastically over single-digit generation times, far too short for strong evolution)
I can see a couple interpretations of this. One is that given observed changes in behavior, it is hard to distinguish cultural change from genetic change. The other is that the cultural environment changes rapidly, so one might not expect the direction of its selective pressure to be maintained for long enough to produce “strong evolution.” Depending on the definition of “strong evolution,” that is tautologous. But why did you introduce the vague qualifier “strong”?
but all these traits are horrifically polygenic and dependant upon the exact combination of thousands of loci all around your genome that interact.
“almost anyone who knows much about evolutionary biology” would know that this does not interfere with the potential for selection, but that excludes virtually all cell biologists. Learn some quantitative genetics in the kingdom of the blind. It’s true that no single allele will shift much, but an aggregate shift in thousands of genes can be measured.
There is also the extremly strong case against genetic determinism in most human behavior.
I have never seen a useful use of the phrase “genetic determinism,” but only ever seen it used as a straw man or a sleight of hand. How much of your comments apply to height?
The traits that I am aware of that show strong evolution all have had thousands of years to be selected for
Things that are easier to observe are observed before things that are harder to observe. A selective sweep at a single locus is the easiest thing to observe, though the faster and more recent the sweep, the easier to observe.
I can see a couple interpretations of this. One is that given observed changes in behavior, it is hard to distinguish cultural change from genetic change. The other is that the cultural environment changes rapidly, so one might not expect the direction of its selective pressure to be maintained for long enough to produce “strong evolution.” Depending on the definition of “strong evolution,” that is tautologous. But why did you introduce the vague qualifier “strong”?
“almost anyone who knows much about evolutionary biology” would know that this does not interfere with the potential for selection, but that excludes virtually all cell biologists. Learn some quantitative genetics in the kingdom of the blind. It’s true that no single allele will shift much, but an aggregate shift in thousands of genes can be measured.
I have never seen a useful use of the phrase “genetic determinism,” but only ever seen it used as a straw man or a sleight of hand. How much of your comments apply to height?
Things that are easier to observe are observed before things that are harder to observe. A selective sweep at a single locus is the easiest thing to observe, though the faster and more recent the sweep, the easier to observe.