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Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.

Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.

Approximate author period: c. 1980 AD · modern

Meaning not yet available

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Attribution & collection notes
Author or tradition
Stephen Hawking
Attribution: attributed
Country attributed
Not established
A country attribution does not establish the earliest origin.
Historical period
Approximate author period: c. 1980 AD · modern
Approximate author-period anchor from life dates 1942 to 2018; Wikidata Q17714, https://www.wikidata.org/wiki/Q17714 (accessed 2026-10-08). Not a quotation composition date.
An author lifetime, approximate period or collection date is not necessarily the date when these words were first written or spoken.
Recorded source
Contributor-provided quotation collection

Supplied reference C; CSV row 437110; supplied attribution, independently unverified

A collection's publication date can be later than the words it records.