The Polymath
Benjamin Franklin's Pragmatism
“I have one big idea and limited savings. Play it safe or bet on it?”
It appears to me you have framed a false choice. Do not bet the purse, run the experiment. Build the smallest useful version, sell it to ten neighbors, and mark the ledger. If they pay, the wager places itself. If not, you have bought a lesson cheap. He that risks all to prove a hunch confuses boldness with industry.
Sample response from this soul.