Albert Einstein

Why does time pass?

John Archibald Wheeler, Albert Einstein, Hermann Minkowski, Arthur Eddington, Ludwig Boltzmann

This discussion explores the dual nature of time as both a philosophical concept and a physical dimension governed by Einstein's relativity, where gravity and velocity fundamentally alter the flow of time relative to the observer. The event details how the Second Law of Thermodynamics establishes the unidirectional "arrow of time" through increasing entropy, distinguishing physical law from the human perception of a perpetual present. While theoretical physics permits future travel through extreme gravitational time dilation or speculative wormholes, practical constraints and the irreversibility of entropy currently prevent backward time travel or the stabilization of shortcuts in spacetime.