I’d recommend looking at yt-dlp GUI, which I used in order to download an OGG file for this particular book. It’s long, at 9 hours 48 minutes, but it’s really good for those who want to understand reality from a non-religious, non-political, and non-economic perspective, but more on the grounds of quantum mechanics, cosmology, biology, metaphysics, and more.

Link for those who don’t see it on their software: https://inv.nadeko.net/watch?v=G1bi0rreEPU
Link for those on YouTube: https://www.youtube.com/watch?v=G1bi0rreEPU