It is a lazy list in ways, though I try to be generous in saying that because the author is reading these comments and my intention isn't to be mean or unkind. It also doesn't make total sense to write about potential startups and then list problems that require tens or hundreds of billions of dollars.

Andrew - I hope you see my other, longer comment and maybe consider that you could approach brainstorming differently. There's a lot of opportunity to do really good things for the world and still make money at the same time, it just requires more risk and creativity.