You find ideas by digging for them in the dirt. This observation might be a little more focused towards programmers, however. Explore spaces where change is ra

You find ideas by digging for them in the dirt. This observation might be a little more focused towards programmers, however. Explore spaces where change is rapidly occurring, and build things with those technologies/platforms/markets. You'll encounter problems along the way, be they legal, technical, distribution, etc. Some of those problems will be experienced by others and so you may stumble across a viable market. But you'll only know that by walking down those paths, rather than gazing from afar.