You only truly understand something if you can explain it to a child, they say. Our inquisitive daughter now makes me painfully aware of this almost daily. Wired is taking this challenge one step further, in their long-standing series «5 Levels of Difficulty». In this recent episode, a computer scientist explains the concept of a zero-knowledge proof to five people, from a 10-year-old all the way to a fellow expert. Fascinating.

From Weekly Filet #379, in January 2022.