I can fall asleep physically while remaining awake mentally with relative ease, I’ve never had the entry paralysis ever associated with the typical exit paralysis sleep demons.
The worst that happens is my brain is just incredibly disoriented when I open my eyes after it thinks Im asleep. The paralysis is pretty fun actually, sometimes it can be a real challenge to break.
Did nobody have math class? The pictures are always misleading!
It never actually specifies the density the people are packed onto the track, the image implies an answer.
I’d argue that the densities should be considered to be equal, regardless of whatever that density value may be. We do not need to solve for the exact value to discuss the problem at hand!
Weirdly good timing, here’s a Kurzgesagt video on that exact question! Uploaded literally yesterday (or yester-er-day depending on time zones)
It works best to catch the cat while its asleep, then this is mostly accurate :)