Here's another good video!
https://video.nostr.build/994381414211ea65f44066b37057bd38e0ee45a2cac210d1c8661e8f9784cfb1.mp4
I've played around with this concept with nostr:nprofile1qqs0d3y7rdahzp4j02yz2jcklmsdsd0u3t9pmduw9gxtnglh38zp4jgpz4mhxue69uhkummnw3ezummcw3ezuer9wchszrnhwden5te0dehhxtnvdakz7qgnwaehxw309ac82unsd3jhqct89ejhxtc0gsfj4.
Public Lesson: Escape Room Game
Real Lesson: Public/Private Key Cryptography
Public Lesson: Art and Self-Actualisation.
Real Lesson: Importance of Privacy.
Public Lesson: Capture the Flag.
Real Lesson: Byzantine Generals Problem.
How about:
Public Lesson:
Growing food in a greenhouse.
Real Lesson:
Heatpunk Mining.
https://video.nostr.build/f62edbb6e00bd066a5c950ccb719084af0b523cad25d47ed038221e7da2a01f5.mp4 
https://video.nostr.build/b196df430cf6230b5970ca6d78bed03fc4580f0a3bd808592bdbca679cfabc74.mp4 
Discussion
Cryptography, or cryptology, is the practice and study of techniques for clear communication in the presence of adversarial behaviour.
CryptoLOLogy is the practice of laughing at shitcoiners.