[turk-]

What you're describing entrepreneurship. I'd imagine pretty much every entrepreneur realizes they have an extremely low probability of success, but some people prefer the thrill of the hunt to the feeling of being a cog in the wheel job at large corporation.

[akanet]

This is not the case. It's hard to overstate the magnitude of the increase in risk you take by pursuing a VC-backablr business strategy vs a bootstrappable one. There are many, many totally good business ideas that will "only" make you tens of millions of dollars and that can be executed relatively casually.