Jim Simons đã chứng minh một nghịch lý cay đắng: Con người chính là cái bug chí mạng nhất trong hệ thống tài chính.

Before 1989, this math genius nearly went bankrupt too because he believed in something called “intuition and instinctive feelings” when trading. As his account evaporated, he realized that human greed, fear, and the illusion of “feeling the price path” were just costly tuition paid to the market in exchange for a false sense of control.
Simons flipped the chessboard by stripping humans of the ability to intervene entirely. He swept Wall Street’s finance crowd out and replaced them with mathematicians, physicists, and system programmers who automated 100% under ironclad rules: No one was allowed to touch the machines.
With humans removed, the game changed completely. Computers don’t look at charts to “guess” whether prices will rise or fall the way traders do; instead, they scan petabytes of data to find the tiniest “probability” deviations in price and repeat this process millions of times every day. In particular, it eliminates greed entirely by applying the Kelly Formula in a cold, hard way—calculating exactly how much capital to deploy, with no excitement and no fear.
Handing the stage to mathematics and the machine’s absolute discipline helped the Medallion Fund swallow the market with a record profit rate of 66% per year for 3 decades, turning $1,000 into more than $20 million. When trading has no trace of human presence, everything becomes simply mathematics.