Guys I dont know what to do, should I invest in Gold or Bitcoin. Gold is more stable I know. But the bitcoin development is crazyy, imagine if you have bought it before 20 years... 
If bitcoin was able to make a lot of progress within 10 or 20 years, then how much more in the next possible years to come. Do not just do the computation, but make a final move. While bitcoin is a good and safe haven investment, bitcoin is more than that. You'll definitely become extremely rich if you know how to make advantage every opportunity that comes. However, if OP wants a safe investment, maybe gold is suitable for him. However, if he wants a slightly risky investment, then bitcoin is the choice.