It's not a binary thing. There are several types of failure. Being locked up for fraud would be one failure that's unlikely to be a good sign for future invest

It's not a binary thing. There are several types of failure. Being locked up for fraud would be one failure that's unlikely to be a good sign for future investors. Having a product offering that is ahead of its time, so there isn't a market yet would be an example of a good failure. You did everything right, apart from time things well. The fact is, once you succeed, it's natural to stop trying. So there's way more data from failures than from success. You can't really learn anything from one success. You could have just been lucky. Just look at programming, you might iterate an algorithm a few times before you hit on something you think works well. Each iteration, you're learning from the failure of the last. You're assessing what you could make better, and implementing it the next time.