Professional gamblers* have something to teach everyone about managing risk.

In this case, the primacy of establishing a separate fund as your bank roll, and protecting it by not letting too much of it ride on any single bet (no matter how great the bet seems), is very appropriate to self-funding your own businesses. If you lose your bank roll, then you have to stop gambling, which is bad if you are convinced you have an edge.

*I'm not a gambler of any type, unless you count investing 401k/IRA savings in index oriented ETFs and mutual funds gambling (not an unfair position).