[lentulusgracchus]

Quite the contrary -- the 'debate' has always been exactly the same as it is now.

Ditto the purported divide in intelligence. Well-to-do, intact families may produce kids who test better on Stanford-Binet tests and their ACT's, because their parents have seen to it that they're better-prepared ..... but are they really smarter?. To assert that they do, after only one or two generations of separation from the less-educated population, would seem to be an unwitting descent into Lysenkoism.

[muawiyah]

Hmm, Lysenko had a idea ~ he had no idea what the mechanism for expressing it would be, but he had an idea.

Later on, about 45 years after DNA was discovered someone came up with the phenomenon known as epigenetics.

Here's an article that takes you to the second issue of the Journal of Epigenetics in 2006. http://www.epigeneticsnews.com/the-history-of-epigenetics-explored/

We no longer descend into Lysenkoism ~ we advance our knowledge of epigenetics.

[SunkenCiv]

Or, it could be that, as with muscle, regular use and exercise hones abilities.