I’ve been watching and enjoying the updated Cosmos, so I’ve been bombarded with the inevitable billions that come about when talking on the cosmic, geologic, or atomic scale. The numbers—size of the universe! age of the universe! numbers of stars! numbers of atoms!—are so vast that they’re nearly incomprehensible.

Thankfully Neil deGrasse Tyson is quite good at turning gigantic numbers into something you can understand, as he does in this 2011 talk where he discusses exactly how wealthy Bill Gates is.