Musical Illusions

To what extent is the popularity of a procedure related to its validity? In Musical Illusions, Prof. Diana Deutsch describes how the celebrated Octave Illusion can be directly applied to the wold of clinical medicine.

Pondering Proof

The real-world connection between TOK and mathematics featuring Prof. James R. Brown, University of Toronto: How do we know when something has been mathematically proved and what role does intuition play?