A C Grayling
A Stitch In Time
Is TIME TRAVEL possible? If we believe certain versions of the view that the universe consists of curved space-time, the answer is yes. In the second election of his A Brief History & Time, Stephen Hawking developed the idea, first mooted by Einstein in 1935, that it might be possible to visit different eras in the universe’s history by passing through channels, known as ‘wormholes’, connecting space-time regions whose curvature bends them close together.
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