Hadrien Jean is a machine learning scientist at Ava Accessibility in the domain of speech transcription. He completed his Ph.D. in cognitive science at the École Normale Supérieure (Paris, France) on the topic of auditory perceptual learning with a behavioral and electrophysiological approach. He has published a series of blog articles aiming at building intuition on mathematics through code and visualization (https: //hadrienj.github.io/posts/).