Hard core! Last night, I came across an internal interview with Citadel's head of stock quantification, which directly revealed the profit logic and selection strategy of top hedge funds. He mercilessly punctured the external filter of quantitative trading: perfect mathematical formulas written on whiteboards cannot make money at all. The real Wall Street meat grinder is not a theoretical deduction in an ivory tower, but a tightly intertwined complex mathematical models, massive data systems, and real liquidity of funds. The most amazing thing is their recruitment rules. He bluntly stated that when selecting candidates, they only consider the "slope" and not the "intercept". To put it simply, he doesn't care about how high your absolute level is now, he only focuses on your potential to solve unknown problems and the acceleration of evolution. Don't cling to static resumes and dead knowledge anymore. In this ever-changing world of cultivation, the true speed of your self iteration is the only chip that can grab money.