A good friend of mine made the following claim:
If we would have a time machine and use it to gather newborns from different eras of human history and would put them in normal and nurturing families they would have the same chances to succeed in today's world as normally born children.
I would really like that to be true. I think it would be a very humbling fact and would make an astounding argument in favor of education and free access to information. At the same time it's the first time I heard that argument and it seems hard to proof.
Is there any research done on this subject?