Except gambling has the odds stacked in the house's favour. There is no such problem with a startup. Will revenue double forever? No. Will revenue double for 1

Except gambling has the odds stacked in the house's favour. There is no such problem with a startup. Will revenue double forever? No. Will revenue double for 100 years? No. Will revenue double for 10 years? Hmmm. Will it double for a year? Lets just say yes. Solve for between 1 and 10, and place your bets accordingly.