Migrating time after time, we reached every corner of the world. Slowly at first. Then, with the invention of boats, quite fast. Today, thanks to motorised vehicles, at great speed. We are the most migratory species in the world.
Lucretian inductions, Galilean evidence or Darwinian deductions were attacks against mental laziness, which is more powerful than any dogma can be. Ideological reasons do not explain human resistance to change. Basically, they tend to sloth.
The World Wide Web does not increase polymathy instrumentally. The Internet rather discourages it. Actually, the Internet generation and the library generation have more than a generational conflict. They stage a cultural rupture.
One fine day I found I had a Mediterranean diet. Just as Molière’s character, who was happy to learn he was speaking in prose, I experienced the satisfaction of right and proper eating. It turns out humankind feeds wrong.