对过去的留恋可能是人之常情，尤其是对上了年纪的人（大概过了50岁的人可以说是上了年纪？），还有一些曾经辉煌，现在落魄的人。
有一个例子是鲁迅笔下的祥林嫂。实际生活中其实这种情况不少。我感觉我自己有时候也会说/想：想当年，我年轻的时候，blah blah blah.
最近 formerly executive assistant at square, sorry I could not find her profile on LinkedIn now, as I unfollowed her recently.
Value Trap
This just reminded me of one thing or one phenomenon in the stock market or stock trading: value trap. Sometimes I got into it. The past price of stock just reflects the past. Nothing more. But sometimes, people think it a stock drops suddenly and drops a lot, they will think it’s a deal, and rush to buy it. And I have done that many times too, like today I bought some PayPal stocks. And I quickly realized it could be value trap, just like the Polaris Inc stock that I traded a while ago.