> Sometime these algorithms break or are exploited. Often in spectacular disasters. Knight lost half a billion dollars in 30 seconds. Nobody reversed though, ev

> Sometime these algorithms break or are exploited. Often in spectacular disasters. Knight lost half a billion dollars in 30 seconds. Nobody reversed though, even though it was clear error. This actually blew my mind. The exchanges bust trades all the time. I don't why they didn't do it in this case.