by Jill Tucker

Sal Khan has interesting ideas about what constitutes riveting dinner conversation.

At the moment, he’s partial to “mind-blowing” similarities between Greek, Latin, Germanic languages and ancient Sanskrit as well as the fact that Iran and Ireland are the only countries with names that mean “land of the Aryans.”

“That’s still my favorite thing to share in conversations,” said the founder of Khan Academy, a free, online learning platform serving 15 million people a month. “The other thing is you can get hypothermia (and die) in 80-degree water.”