In both cases, someone adept at parsing prediction markets could have known that something was up. “It’s possible to spot these bets ahead of time,” Rajiv Sethi, a Barnard College economist who studies prediction markets, told me. There are some telltale behaviors that could help distinguish a military contractor betting off a state secret from a college student mindlessly scrolling on his phone after one too many cans of Celsius. Someone who’s using a newly created account to wager a lot of money against the conventional wisdom is probably the former, not the latter. And spotting these kinds of suspicious bettors is only getting easier. The prediction-market boom has created a cottage industry of tools that instantaneously flag potential insider trading—not for legal purposes but so that you, too, can profit off of what the select few already know.
The foldl' overflow is worth seeing for yourself:，更多细节参见新收录的资料
，详情可参考新收录的资料
Dtype is part of the type — no implicit conversion
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