I was lucky enough to see it from the inside (thanks to the contest by BlueBird). I want to say one thing:
Without such detailed lectures, you will spend much more time (nerves and money) to understand this area.
Feedback from mentors makes the process much easier. It makes much more sense than reading public content.
This is a ticket. Those who really need it really need it. But remember: this knowledge should be handled with caution!