Stephen Hawking Quotes: Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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