Sure it would. Skimp and save until you can invest $100 using Robin Hood. Put it all at risk. Guess right and double your money in less than 12 months. That's

Sure it would. Skimp and save until you can invest $100 using Robin Hood. Put it all at risk. Guess right and double your money in less than 12 months. That's when you find out that the government (in the US) takes a 20% cut of your winnings. Much higher cut if you are in a higher bracket.