Summary of J. Richard Gott's Time Travel in Einstein's Universe

Please note: This is a companion version & not the original book. Book Preview:

#1 The idea of time travel has been popularized by science fiction. If you were to travel to the past, you could change it. But you could also visit historical figures and see what they looked like or attend Shakespeare’s first production of Hamlet.

#2 Time travel is now possible in the universe, and physicists are studying it. In Isaac Newton’s universe, time travel was inconceivable, but in Einstein’s universe it has become a real possibility.

#3 The idea of time travel gained popularity through the novel The Time Machine by Wells. He explained that there are actually four dimensions: length, breadth, thickness, and time. The distinction between the former three dimensions and the latter is unreal because our consciousness moves intermittently along the latter from the beginning to the end of our lives.

#4 The universe is four-dimensional. locating an event in the universe requires four coordinates. The first three coordinates locate its position in space, while the fourth coordinate tells you when to arrive.

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