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Stephen Hawking Time Travel Quotations

Stephen Hawking Quotes about:

Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.'
Ifs Quotes

If time travel is possible, where are the tourists from the future?
Practicals Quotes

Time travel may be possible, but it is not practical.
I have experimental evidence that time travel is not possible.

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