居士能算一下，如果加上2次大跌，一次跌 77% 另一次 8年后 跌 54% 的话，你的 return 是什么样的？

如果你有3万的时候 跌 70% 剩 9千（但是你pay远远高于这个数，跌的就是小意思），跟你如果有 300万跌 70% 剩 90万，感觉非常非常不一样。如果你有 2400万 跌 70% 剩下 720万，对于过去苦日子过来的人，想得开的，720万也非常好了。想不开的对于白白跌掉的 1600多万 就会有跳楼的了 

Dot-com bubble of 1999-2000The NASDAQ peaked at 5,048.62 points on March 10. The index would go on to plummet by 76.81% until it reached a low of 1,139.90 points on Oct. 4, 2002. The primary cause of this crash was overvalued internet stocks.

it kept rising, to 14,164 points on Oct. 9, 2007 -- but by September 2008, the major stock indexes had lost almost 20% of their value. The Dow didn't reach its lowest point, which was 54% below its peak, until March 6, 2009. It then took four years for the Dow to fully recover from the crash.