* His Youtube channel is his main platform
* However, the money mostly comes from patreon subscribers, and you can also have videos delivered there
* He also earns income from a podcast, Cortex
* The Podcast has its own brand of sellable things, currently journals and Tshirts
* He had a second podcast, hello internet, currently on hiatus. If ever something went catastrophically wrong with youtube this could be reactivated via the feed
* He has a large email list which he uses to reach people directly and drive traffic to videos if people request these updates
* He is also prominent on twitter etc and maintains secondary youtube channels, useful if main one taken down
* He runs a large subreddit for his following
So it is layers and layers of redundancy, built on a mix of other platforms and also two he controls directly (email and rss)
Still faces a youtube risk but it would take a an earthquake across platforms to truly wreck his income streams.
As someone who runs an online business and follows him it’s been impressive to watch how diversified he has made his comms channels.