Exploring time travel reveals that backward travel to any point before a machine is constructed is theoretically prohibited, whether framed by the universe’s need to avoid paradoxes (such as Stephen Hawking’s Chronology Protection Conjecture) or by simple physical geometry (like the Earth’s movement through the galaxy)
Exploring time travel reveals that backward travel to any point before a machine is constructed is theoretically prohibited, whether framed by the universe’s need to avoid paradoxes (such as Stephen Hawking’s Chronology Protection Conjecture) or by simple physical geometry (like the Earth’s movement through the galaxy)