If, you could travel faster than the speed of light, could you go somewhere, stop, turn around, and watch yourself arrive;
and, if you traveled faster than the speed of sound, would it likewise arrive after you?
If you dropped a heated sewing neeedle into the ocean, you could claim that you rasied the ocean's temperature and tide, but could you prove it?
A crystal radio absorbs some of the transmitted energy during the conversion of that signal to audible energy, could enough crystal radios absorb all the energy so that nobody hears anything?
Do you weigh an envelope with, or without the stamp? If the stamp places it into the next weight class, do you pay more?
A radio is playing loudly in an adjacent room. You close the door and your room becomes quieter. Does the other room become louder?
Now let's see if that sparks anything here
