TL;DR: author was generating a bunch of pics through Stable Diffusion. There are loud beeps, he doesn’t know where they’re from. The beeps annoy his cat, the cat sniffs and then paws the surge protector. The author concludes that the computer was drawing more power than the surge protector was made for, that was draining its battery, and the beeps were the surge protector informing the battery was almost dry.

Interesting cat behaviour. Neither of my cats would do this: one doesn’t give a fuck about noises, another hates them so much she’d simply leave. And they have a good, instinctive grasp on where sounds come from. You as a human can actually train it, and it’s damn useful, but the cat will still be better at it.