I agree with your observation. It is difficult to find problems worth solving. I thought and read about this a lot. And I think solving problems is just one way, one flavor of deciding which thing to build. I’d say this is the Silicon Valley school of thought, very much influenced by VCs. There is a another way, which I have picked up from Seth Godin: Tell the right story. People don’t always know why they buy things. Why do I need a smart watch? Why do I need fancy shoes? They don’t solve a real problem. But, they make me feel good. Because I can tell a story to myself. A think this blend of deciding what to do is more art than rational, that’s what it’s maybe not that popular. But if you start to look around, you will notice the story of stuff people buy.