[crq-yml]

Venn diagram it out. You have your own skills, needs and inclinations. And then other people have theirs. Look for a clear, coherent overlap with a market and build the pitch from that. Validate occasionally that you understand the market you're addressing and not building something redundant or handled within their existing skillsets(or, that you are tapping an outsider market that doesn't need that skillset).

At scale, if you're looking for a big paycheck, what you want to put in the diagram is "nation building" - something that furthers the kinds of goals that governments or the powerful people behind them will pay for. A lot of things that build nations seem like they have to cost a lot and involve lots of capital, but that simultaneously indicates a place for technology to disrupt the dependencies involved, usually by automating, and usually by automating a higher level of quality, not speed or quantity. It's hard to get any right answers, easy to get wrong ones quickly.