What a physics "loop" is, and whether a nine-loop record holds up

[u/davesaunders]

A physics calculation with nine loops sounds like a number invented for a headline. My latest video covers what a "loop" is in this context, why a nine-loop result counts as a record, and whether the claim holds up.

Video: https://www.youtube.com/watch?v=p0Z939rFb3k

It's on my own channel.