Plain and simple, these people say, Wall Street is too greedy. To me, though, that analysis rings false. It’s hollow, and far too simplistic. If we live in a world where scientists have learned to split the atom, medical researchers are designing drugs that alter our body chemistry, major corporations are collecting individual data, and insanely complex high-frequency trading algorithms are killing the old-fashioned brokerage techniques, how can we justify summing up an entire industry, with countless parts and manifestations, in one biblical word? In my recent conversation with Denise Shull, career coach, former trader, neuroscience student, and author of the new book Market Mind Games: A Radical Psychology of Investing, Trading, and Risk, Shull cleared up some of my confusion. “Everyone thinks Wall Street is greedy,” she said. “But it isn’t greed. It’s the fear of missing out.”