Well put and totally agree - in other words, as the start-up founder, you know it's a good idea. My cynical take on "many bad ideas become major successes" is

Well put and totally agree - in other words, as the start-up founder, you know it's a good idea. My cynical take on "many bad ideas become major successes" is that as an investor betting on 100 companies, your best economics are from 1 or 2 unicorns, and not 50 base hits. The investor optimized approach is 1 or 2 crazy ideas ended up being prescient and create awesomeness, but the remaining 98 ideas are indeed bad and go nowhere. The founder optimized approach is 50 good ideas create meaningful outcomes that aren't outsized.