Encryption is a pretty interesting topic  kind of a mathematical magic trick.

One of the goals of this site is to point out YouTube content that I consider to be of real value.

Computerphile definitely qualifies. Well thought out, well articulated content on interesting topics, with a body of work that will generally allow you to go as deep on a topic as you’d like.

I spent a few minutes throwing together a semi-sorted playlist on encryption related topics, as I find the subject compelling, and a good example of the sort of deep dive on a topic you can do just by looking through the Computerphile Youtube Channel.