I seem to remember a story about how something - a neural net, or an early reinforced learning experiment - ended up accidentally exploiting a physics bug in a chip to achieve a result that should have gone through the chip's expected circuitry instead.

It was specific to that one particular chip, and swapping it out for another supposedly identical chip caused the calculation, or simulation, or whatever that was running on the larger system, to fail.

That is, it wasn't supposed to be exploiting physics glitches but that's what happened.

... I think I found it. It happened all the way back in the 1990s if this story is to be believed: https://www.damninteresting.com/on-the-origin-of-circuits/