[danielkyne]

These are obviously (?) mostly facetious, but for people interested in actual startup ideas, worth thinking more about problems than just market opportunities:

"The way to get startup ideas is not to try to think of startup ideas. It's to look for problems, preferably problems you have yourself." — Paul Graham on 'How to Get Startup Ideas' - http://paulgraham.com/startupideas.html

Further reading; here's the initial problem and customer segment that 99 of the biggest companies in tech today started with originally: "99 Startup Problems" - https://www.opinionx.co/99-problems/