Pair programming usually has a single "driver" on the keyboard to keep things controllable. Here, everybody is driving: "dozens of cursors are concurrently editing the same file in real-time."
The experience was actually quite nice for two-three people but we always had the "ok let me type now" flow. Multiple changes happening at once sounds hyper distracting.
or at least that's what i've heard, no idea if they actually do it.
it is nice to see a crdt backed editor tool for markdown and code though. gdocs markdown support has been lacking for years.
Yeah, we used to do that back when I was in college. It's only for certain classes and most people usually kept their own notes too (or instead, why write twice). Or some classes ban laptops so you'd write on paper anyway.