A good way to get high returns is to simply use a low-cost, tax-efficient combination of stock and bond index funds. After taxes and fees, the results compound in your favor. I have no interest in gambling on even higher returns - those are plenty for me. If you want to maximize your chances of getting rich as well as getting poor, yes, you can put it all on Bitcoin, or Tesla, or 32 at the roulette wheel, but I'm more interested in growing a nest egg than taking those risks.