The ending to Darren Aronofsky’s iconic debut, Pi, is quite thought-provoking as it offers a satisfying conclusion to the psychological mystery. Shot in claustrophobic spaces on a high contrast black-and-white film, Pi revolves around an unemployed number theorist, Max Cohen, who is convinced that everything in the universe is based on numbers and equations. Using his mathematical capabilities to calculate every move within the stock market, his cerebral journey to discover the hidden “complete order” in the real world finds him reaching an obsessive level that is simultaneously amusing and terrifying.
https://screenrant.com/darren-aronofskys-pi-ending-explained/