3 ms·
> We're biologically the same as we were 10,000 years ago Tangential, but why do people so often get away with this particular case of sloppy thinking? There
by interfixus 7y ago
> We're biologically the same as we were 10,000 years ago
Tangential, but why do people so often get away with this particular case of sloppy thinking?
There have been plenty of wars and famines and civilisational calamities and bottlenecks and successes and migrations and radical changes in conditions over the last 10000 years. Evolution is known to act fast in a changing environment. There is no way "we" could have avoided significant change - and over much shorter timespans then ten millennia at that.
- ErotemeObelus 7y agoI think interfixus has a point
- hoseja 7y agoBecause of rate of mutation. Maybe ratios of different genotype subpopulations changed but there could have been only minimal changes via mutation. Where does the idea that evolution works fast come from?
- dorusr 7y agoHis argument does not need beneficial mutations to work. Merely the change in the proportion of gene expression can have profound consequences. Take the breeding of dogs for example. This kind of selection is what he refers to when he talks about bottlenecks, wars, and famine. Small groups with beneficial gene selection could've easily taken over during great changes in societal structure. The idea that evolution can go very fast is pretty well founded in (I forget the name) the idea that you have large stretches of minimal, small improvements, interpuncted by short disruptive events of large improvements/readaptation to a new environment.
- Izkata 7y agoFoxes are a better example. Took only 10 generations to domesticate, and the result wasn't just demeanor - physical, dog-like changes resulted as well: https://www.pbs.org/newshour/science/domesticated-foxes-genetically-fascinating-terrible-pets https://www.pbs.org/newshour/science/domesticated-foxes-gene...