Simon Willison’s Weblog

What is the best way to choose between two equally feasible start-up ideas?

My answer to What is the best way to choose between two equally feasible start-up ideas? on Quora

Which one is most likely to still be exciting to you in five years time?

Which one do you have the best professional network for?

Which one do you have a competitive advantage in?

Which one do you find easier to pitch to someone such that they “get it”?

Which one has only recently become feasible due to changes in technology?

Which one has the largest addressable market?

If you still can’t pick, toss a coin, build a prototype of the one that wins, then decide if you need to build a prototype of the other one before deciding between the two.