He knows everything, that's who

Conversation in the Charlotte airport between a man and his son, approx. age 6:

son: How many people are in the world? Mom says a million something. I think it's a hundred million.

Dad: I don't think it's quite that many.... Want to find out?

son: Sure! How?

Dad (getting out his phone): Google!

Son: Who's Google?

Dad: Google knows all the stuff that mom and I don't know.