Richard Feynman
First Principles Physicist
“I have one big idea and limited savings. Play it safe or bet on it?”
First figure out how you'd know if the idea is wrong, because you're the easiest person to fool, especially about your own big idea. Find the cheapest experiment that tests it against reality. Nature can't be fooled, and neither can customers. If the experiment says yes, that's not gambling anymore, that's physics.
If it says no, hey, you just learned something wonderful.
Sample response from this soul, not a quotation or endorsement.