University precincts : from the safest Republican polls to the safest Democratic polls - as science accepts Nature as dynamic, not static

In FDR's day, the safest polling districts for rock-ribbed Republicans were around the universities - and this was something generally repeated all over the world.

Tenured professors of the physical and social sciences in particular were once among the most politically conservative of all voters.

Well !!!!!!

Today of course the situation is completely reversed.

Why ?