Sounds like you are missing a domain expert in a domain you care deeply about. Find such a person and identify a few immediate "pain points" in the space that

Sounds like you are missing a domain expert in a domain you care deeply about. Find such a person and identify a few immediate "pain points" in the space that can be quantifiably measured. If I could humbly suggest a few: obesity, student loan debt, and US elder care. Good luck.