Related, I vaguely recall a concept from a Tesla charger for semis that proposed a charging cable with active coolant flowing through it as well to keep the wire cooled.

edit: https://www.teslarati.com/tesla-liquid-cooled-supercharger-c...

This is why I risk jokes on HN. Normally they're frowned upon but it's worth it to find interesting tech that meets the eccentric idea.

It worked for MONIAC.

Great, now I’ll have to figure out if my USB Hi-Flow cable is slowing down my USB Full-Flow drink bottle refilling.

It's not. Full flow is less than hi-flow... Your bottle might slow down other fills on the bus though :p