I wasted $40k on a fantastic startup idea

>Make something people want. It's Y-Combinator's motto and a maxim of aspiring internet entrepreneurs. The idea is that if you build something truly awesome, you'll figure out a way to make some money off of it. So I built something people wanted. Consumers wanted it, doctors wanted it, I wanted it. Where did I go wrong?

I'm not sure he still gets it. He didn't built something people want (even less so want enough to pay for).

He built something he merely thought people should want. In the end, people didn't really want it.

Does not always work like that. Did people „want“ cars when there were only horses. Or Facebook when there was just email. Sometimes you build something and only after people realise that they want built thing.