Because that may not work

1. http://finance.yahoo.com/q/bc?s=%5EN225+Basic+Chart&t=my
You lose between 1985 ~ 2013
2. http://finance.yahoo.com/q/bc?s=%5EHSI+Basic+Chart&t=my
You get almost nothing between 1997~2013
3. http://finance.yahoo.com/q/bc?t=my&l=on&z=l&q=l&p=&a=&c=&s=spy&ql=1
You gain some between 2000~2013, but less than 100%. If Fed didn't act in 2008~2013, for sure, you lose.
...
In a very long long time, say 50 years, 100 years, that is true, but that is too long thus meaningless.

所有跟帖： 

• 一语中的，高！ -单豆豆- ♀ (0 bytes) () 01/24/2014 postreply 14:55:05

• 如果你运气非常不好，正好掉在这两个时间段里。 -BayFamily- ♂ (337 bytes) () 01/24/2014 postreply 14:57:20

• 楼上PT说得对，时间跨度要够长，work的可能性才大，不是一代人能干得了的 -单豆豆- ♀ (0 bytes) () 01/24/2014 postreply 15:09:47

• 你太负面了，缺少正能量哦。。。。。。 -金山法海- ♂ (59 bytes) () 01/24/2014 postreply 15:13:46