Lesson 101: Do not short sell an irrational market. You can be bankrupted before it turned rational. John Keynes said in the long run, we are all dead. Go with the trend - up or down when you are trading. Unsure, don't trade. Be discipline.

Closed final Soundhound trading position. Risky day trading. Soundhound seems overpriced. Directors selling but it is the market that makes the call and it can be irrational in the short run. Probably, rationalizing the long run (punt). 

第101课：不要在非理性市场上卖空。在它变得理性之前你可能会破产。约翰凯恩斯说，从长远来看，我们都死了。交易时顺应趋势——上涨或下跌。不确定，请勿交易。遵守纪律。 关闭 Soundhound 最终交易头寸。日间交易有风险。 Soundhound 似乎价格过高。董事们纷纷抛售，但做出决定的是市场，从短期来看，这可能是非理性的。可能是为了长期合理化（弃踢）。