In How Data Transformed Trading, discover how data became a powerful tool for understanding human behavior — and making big money! Meet David Harding, a science graduate who shook up the chaotic world of trading by using math and data to predict price patterns. While others trusted their gut, Harding believed data and the right computer algorithms could crack the code of the stock market. Today, his company invests billions, proving that smart data (and a little science) can change the game! This video is excerpted from BBC’s Horizon: The Age of Big Data, which explores how data has shaped industries, economies, and human behavior.