[lioeters]

I believe he was talking about Pratt parsing in the video.

Top Down Operator Precedence - Vaughan R. Pratt - https://tdop.github.io/

What he called "priority" is called "binding power" in the paper.

[Leszek]

I like Jonathan Blow and all, but he should be careful with trashing academic parsing theory if he thinks that Pratt parsing was only discovered "in the last few years".