
Quotes from Warren Buffett: Wide diversification is only necessary when investors do not know what they are doing.
Mr. Buffett is talking about two things, 1) Investor skill and 2) bre,adth (the number of investments).
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女儿生病,肺炎。在医院住了七天。出院之后,还回门诊打了点滴,做了治疗。
因为要回美国,于是提前照了X光胸片,显示肺部仍有阴影。医生说,阴影消失需要时间,照片子太早,其实意义不大。
女儿这一病,变得非常粘人,一刻也不想离开妈妈。也难伺候,吃饭总是这不吃那不吃的。可以理解,毕竟生如此严重的病,毕竟是第一次,也是她第一次住院。
通过视频看她,她的精神在恢复,看上去比刚住院的时候好多了。同时也看得出,她仍然非常虚弱。她性子急,阴暗收起来,跟谁说话都戗着,总是不要不要,不行不行,no, no, no…
一开始,看到护士还老哭。都是扎针扎的。我小时候也不喜欢扎针,记得很小的时候扎针,我还骂过大夫。大夫就是姥姥村里的邻居,为此笑话过我很长时间。
女儿倒是不骂人,比我强多了。

Assumptions.
Technical analysis: assuming that there is information in historical price and volume data that we can discover and exploit in advance of the market.
Fundamental analysis: assuming there is information in fundamental data, like earnings, that can be exploited and traded upon in advance of the market.
The efficient markets hypothesis(EMH) says we’re wrong about both.
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