On the same page you see an article about Bernie Madoff. Maybe read that article too and do the 30 second test on BTC too. The most important sentences of the Madoff report that should be applied to any investment: If something looks too good to be true, it probably is. I’m not aware of any true investments that provide returns like ... Be aware of your cognitive biases — we all have them. With the optimism bias we believe that it’s not likely that we’ll experience a negative event. Finally, you’ve probably seen this disclaimer before: Past performance isn’t indicative of future results.