Human beings have a strong desire to travel through time. Although scientists are not yet taking out patents on a time machine they are investigating whether it is possible under the laws of physics. In Newtons three-dimensional world this would have been inconceivable. But with Einsteins theory of relativity a fourth dimension time enters the frame. Is it really inconceivable that we can travel along the timeline? In this book Richard Gott offers an intellectually expansive witty & engaging study of the viability of time travel which takes us from the dream of time travel itself in H. G. Wellss path-breaking novel THE TIME MACHINE to cutting-edge research into astrophysics & quantum teleportation. He explores the scientific social & moral implications of time travel & looks at recent remarkable experiments in which fundamental particles were actually sent into the future.