[Vecr]

I actually either didn't know about that pressure thing [0], or I forgot. I suspect I read about it at some point because at some level I knew ascending could have bad effects even if you don't need decompression stops. But I didn't know why, even though it's obvious in retrospect.

So thanks for that, even though it's entirely unrelated to AI.

[0]: though I've seen videos of the exact same effect on a plastic water bottle, but my brain didn't make the connection