[cocktailpeanuts]

I agree about coming up with 100 ideas first and picking one from them, but disagree with how you should get feedback from others on whether you should start or not.

You really don't know if your idea is "promising" or not until you actually start executing. A lot of startups started with mediocre ideas or even a good idea with small ambition but ended up realizing there's something big in there.

Uber didn't start out thinking "Yeah we're totally going to disrupt how humans move around". They started out as a limo service. When Snapchat first launched nobody cared. Pinterest was in hungry mode for a quite a while before it found its audience. But only because it was so hard when they succeeded it meant a lot.

If you keep asking others for "promising" ideas, you'll probably end up with the most obvious idea. You should work on something that excites you the most.