It seems to me that this sentence mixes different meanings of 
"evolution". Just because we have acquired knowledge and skills does not 
mean we have "evolved" in the sense I think it is used on this list. The 
neurological aspects of newborns may have evolved since paleolithic 
times, but we are not able to determine that.


Adam Sroka wrote:
...
We are far less constrained by our surroundings than other beings that 
we are aware of, because the evolution of linguistic "software" has 
enabled us to evolve faster than we could possibly evolve in "hardware."
....