What is time travel?

Time Travel

Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space. Time travel could hypothetically involve moving backward in time to a moment earlier than the starting point, or forward to the future of that point without the need for the traveler to experience the intervening period (at least not at the normal rate). Any technological device – whether fictional or hypothetical – that would be used to achieve time travel is commonly known as a time machine.

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Famous quotes containing the words time and/or travel:

    In an expanding universe, time is on the side of the outcast. Those who once inhabited the suburbs of human contempt find that without changing their address they eventually live in the metropolis.
    Quentin Crisp (b. 1908)

    When you travel to the Celestial City, carry no letter of introduction. When you knock, ask to see God,—none of the servants.
    Henry David Thoreau (1817–1862)