Very few successes, in my opinion, were really about a great idea. (Google, Microsoft, Apple, a few others I'm sure.) Cracking into that market is stupid hard

Very few successes, in my opinion, were really about a great idea. (Google, Microsoft, Apple, a few others I'm sure.) Cracking into that market is stupid hard. You're better off taking a good idea that you can actually do, and doing it better than anyone else. Passion helps with that. It also helps to find a problem where the existing solutions are all similar and not very good. Flickr, del.icio.us, Viaweb, and Mozilla all seem to me to have done well playing this angle.