Why not a mysterious spinning saw blade that’s been in orbit for ten years that comes out of nowhere while you’re giving a space walk and talk to a bunch of other astronauts, slices your head off, and is out of radar range before anyone grasps what’s happening.
So astronomically fast is this saw blade traveling that it imparts almost no momentum to your head, except a gentle nudge that sends your grimacing head slowly upward. It gets almost a foot away from your shoulders before people realize something is wrong.
Why not both?
Why not a mysterious spinning saw blade that’s been in orbit for ten years that comes out of nowhere while you’re giving a space walk and talk to a bunch of other astronauts, slices your head off, and is out of radar range before anyone grasps what’s happening.
So astronomically fast is this saw blade traveling that it imparts almost no momentum to your head, except a gentle nudge that sends your grimacing head slowly upward. It gets almost a foot away from your shoulders before people realize something is wrong.