In the concluding reflection of the pivotal tenth section of the Living Forces, Kant recognized the contingency of the pressure-propagation ratio (1:24.26–8), inferred that other ratios would generate continua with other dimensions (1:24.28–30), and surmised that a science in command of the dimensional range would be the highest geometry achievable (1:24.31–3). In light of quantum geometry and its modern guises—superstring and M-theories—this last remark might well have been Kant’s most far-sighted prediction. Despite suffering from insufficient scientific training, the rejection by his advisor, the academic failure, and the catastrophe in his family, Kant’s philosophical debut in 1749 reveals the mark of genius.