Claims

Qualified voice coaches with a degree in voice produce content that is often half fluff with limited depth.

A mass medium combining active learning (like Nand to Tetris) with structured material (like games or courses) that could be applied to many domains hasn't been created yet—we have non-mass apprenticeship, which can't scale like books, and mass education without the action-feedback loop.

Video has taken off as a pedagogical medium enormously (Grant Sanderson's 3Blue1Brown videos get millions of views from people who would never read a Springer graduate textbook), but video produces engagement without producing detailed understanding—most people don't retain much from watching explanatory videos.