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3.) Gambling .
Simple get into sites like fun.earnbet.io or roobet.com put in some money gamble it off in different games like poker , blackjack , crash and stuff like that . Never invest moere than you can afford to lose .
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Hi aswin123adam, gambling is just gambling

isn't a form of investment.
Moreover if you play games that allow the house to have a strong advantage it's pretty clear he will go to lose money .