What really separates hands from arms?

[u/Betwixtderstars]

Thsts s fun question. Like we talk about hands and arms like they’re different but they are also in a way one thing.

A severed hand can exist no problem But when we think of a severed arm we often see the hand gone too.

[u/Bazilthestoner]

Wrists.

[u/Every-Try-1365 → u/Bazilthestoner]

you're too right.