Quantum mechanics is also stranger!

Ah, professor has already answered this question! The maximum angle is limited to the speed of light and hence 45 degrees. But a follow up question is, what is the same question is applied to the early universe, can the time slice angle extend beyond the big bang?

People moving relative to a ‘stationary’ observer should age less. We can use Professor Greene’s analogy here. Instead of a rolex tightly bolted to the top of the clock, its the person that is bound to the light clock. If the light clock is now synchronized to the person’s heart beat (assuming the heart beat is constant and we are measuring the time in terms of heart beats), then as seen from the stationary reference frame, we should see the moving person’s heart beat slow down. This idea can then be extended to all of the biologocal processes and hence to the aging process itself!