1. An event occurs, observable from photons that leave it and are captured by a human retina. 2. The event is is observed by a hypothetical infinite number of people lined up -- or just a sufficiently large number of people. 3. The event is observed/perceived at imperceptively different moments in time by each observer. 4. If the universe is infinite ( and if it isn't then what the heck is it?) then every event that has ever occured or will occur will never stop occuring for some hypothetical observer. "Time is Nature's way of keeping everything from happening all at once" Richard Feynman