Stephen Hawking on Time Travel

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In 1995, with their forthcoming 15th anniversary issue in mind, The Face magazine approached Stephen Hawking and asked him for a time travel formula. They soon received the following response by fax.

Transcript follows.

(Source: The Face's former editors, Richard Benson & Johnny Davis; Image: Stephen Hawking, via.)



Transcript
UNIVERSITY OF CAMBRIDGE
Department of Applied Mathematics and Theoretical Physics
Silver Street, Cambridge, England CB3 9EW

FAX

From: Sue Masey, Personal Assistant to Professor S W Hawking
To: Johnny Davis

Number of pages: 1 (Including this one)

Date 6 April 1995

Thank you for your recent fax. I do not have any equations for time travel. If I had, I would win the National Lottery every week.

S W Hawking