I was watching a SciFi tv show where large objects had an outer speed limit of 18000 kph and that got me wondering what things in everyday life are faster than even 500 kph.
I know bullets can be fast, but they are not exactly everyday life (at least in my life).
I included mass for obvious relativistic reasons.
Not the same thing, since the movement of a shadow from point A to point B does not cause any transfer of energy or information between those points, whereas the shattering of glass can be initiated from point A and travel to point B at the given speed, transferring information (and possibly energy) between them.
As for not being a moving object, that’s fair, and why they mentioned it’s not quite the same thing in their comment.