[coryfklein]

Historically speaking, if you bought bitcoin at any point and time and held on to it for 2 years it would outperform an S&P 500 index. We can argue about how long that trend would continue, but those who have chosen to invest at least something in bitcoin have made a good investment so far.

Yes, it is a high risk investment, and yes you could lose 99% of your investment. If you don't have a tolerance for that kind of risk, then bitcoin shouldn't make up much (if any) of your portfolio.