Suppose you add up one plus two plus four plus eight plus sixteen plus… well, you get the point. Each number is twice as big as the previous one, so it's pretty obvious that this sum is...
So today I want to try and bend your brains a little bit today. And I'm hoping it will cause a little bit of debate on the comments, because I know YouTube's the home of rational and...
ED COPELAND: Hello. BRADY HARAN: I was going to ask you to describe this in terms that you would describe it to, say, your daughter. And then I remembered your daughter does economics at Cambridge. ED...