I feel like a ton of people still just write code for themselves. It's such a big problem that a common piece of advice for founders is "build something people

I feel like a ton of people still just write code for themselves. It's such a big problem that a common piece of advice for founders is "build something people actually want". ------ As a counterpoint to myself, perhaps founders are constantly building things for a hypothetical third party, which may support the point OP is trying to make.