I think he meant to write "Prologue" instead of "PROLOG".
I spent a few minutes excitedly trying to figure out how one of my favourite declarative programming languages was used to solve modern robotic sensing problems, only to realise it was probably just a misspelling ... :(
Q: How many Prolog programmers does it take to change a lightbulb?
A: False.
Yeah, he also immediately starts talking about GOFAI, to further confuse the Enemy...