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Stephen Hawking - The Universe in a Nutshell (2001)

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One might think this means that imaginary numbers are just a mathematical game having nothing to do with the real world. From the viewpoint of positivist philosophy, however, one cannot determine what is real. All one can do is find which mathematical models describe the universe we live in. It turns out that a mathematical model involving imaginary time predicts not only effects we have already observed but also effects we have not been able to measure yet nevertheless believe in for other reasons. So what is real and what is imaginary? Is the distinction just in our minds?

Stephen Hawking

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When people ask for time, it's always for time to say no. Yes has one more letter in it, but it doesn't take half as long to say.
Edith Wharton

Stephen Hawking

Stephen Hawking
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Born: January 8, 1942
Died: March 14, 2018 (aged 76)
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