eli5: How come the computer pointer on the screen hides on the right side of the screen but doesn’t on the left?

Question

When watching a video we always subconsciously swipe the mouse to the right so the pointer can hide on the right side but it will always rest against the left side completely visible why is that?

In: Engineering

Answer 1

the pointer is pointing at the pixel at the top left corner. None of the pointer extends over that line on the left, but it does extend to the right. So if you move to point at the right most pixel on your screen, part of cursor goes off the screen but the point remains on it.