the link seemed obvious: There was a major drug announcement that caused a stock to plunge; that announcement was made by a doctor who had access to the information well in advance; that doctor had been paid a fortune to consult with a trader at SAC, who was paid a fortune by Cohen, who made millions of dollars trading the stock the week before the news came out. It was like Occam’s razor, or the law of parsimony: Among competing hypotheses, the simplest one was usually correct. Any other explanation defied common sense.
