21 million BTC divided by 7 billion people yields .003 BTC per human. That's 1 BTC for every 333 people. There are fewer than 11.5 million addresses in use, so

21 million BTC divided by 7 billion people yields .003 BTC per human. That's 1 BTC for every 333 people. There are fewer than 11.5 million addresses in use, so fewer than 11.5 million people have any BTC. There is a lot more growth to come.