system
A chat on subreddit /r/pcmasterrace
human
When checking, people should also make sure the paste has excellent *thermal* conductivity, and isn't *electrically* conductive.

Thermal conductivity is good. Electrical conductivity is not so good.
gpt
Metals are really good at both, a lot of old cheap thermal pastes were basically aluminium oxide dust and silicone grease if I remember correctly

Back in my day non-electrically conductive was a premium feature! These kids and their safe thermal paste. /s