Comment by btilly

Just because success is unlikely, we shouldn't try for it?

There are a lot of ideas that sound good. Far fewer that are good. Being able to tell the difference makes it much more likely that you're on a plausible path to success.

Another way to see the point is to remember that it is better to make something that a few people really want than that a lot of people would like a little bit. An app is more likely to fit that bill than a platform.