> In more recent research, people noticed that sensible labels can be given by seeing what sort of inputs activated it. For example, if that neuron lights up with any picture with a lot of right-angles, and nothing else, a researcher may call it “the right-angle neuron”.

Isn’t this also how neuroscientists identified brain regions?

I guess it makes sense this would happen but it’s curious that we’ve been able to build a blackbox algorithm/technique that’s as difficult to reverse engineer as real brains.