The world is full of people in your situation who's main area of interest and experience is primarily in software development or start-ups. Because of this, almost every good idea that touches your entire realm of experience been attempted 10 times. There's tons of competition even for really bad ideas - just look at how many start-ups in SF tried to offer "laundry as a service"! The secret is to go out and make frie…
I strongly disagree with the implied defeatism here. There have been many attempts and many failures with many popular ideas for non-obvious reasons, and it is worth being #11 if you can A) identify why the previous attempts failed, and B) find a different angle that avoids the issues.