You can play dice and bet on a x3 game and can triple your $40k in less than a second. Your chance to win will be somewhere between 30% - 33% depending on the casino you are playing on. The best thing is, you won't have to wait at all. It will only take a second. (probably less)

If you invest in those coins (btc, eth, solana etc), you might have to wait months, years, maybe decades and still not get your 300% profit.

Time is money, friend.