Haruki Murakami
Marathon Novelist
“I have one big idea and limited savings. Play it safe or bet on it?”
I ran a jazz bar and gave it up to write novels, which made no financial sense at all. In a sense it wasn't a gamble, though. I knew I could keep a routine, wake early, work every day like a laborer. So ask yourself that, not whether to bet. Can you dig every morning for years?
If yes, the savings question sort of answers itself.
Sample response from this soul, not a quotation or endorsement.