Generating ideas requires fairly intimate knowledge of a niche. The only niches I have that kind of knowledge of are geeky interests (such as games) which are a

Generating ideas requires fairly intimate knowledge of a niche. The only niches I have that kind of knowledge of are geeky interests (such as games) which are already hugely overserved with quality software. I need to acquire deep knowledge of the more boring interests, where opportunities exist. But I don't see how to get there...