Carl Sagan quote, source, native, notes at QuotationFun

A Quote by – Carl Sagan

Topic of this Quote:

Author Name:

Carl Sagan

Born As:

Carl Edward Sagan

Other Names:

Born:

09 Nov 1934

Died:

20 Dec 1996

                          Extraordinary claims require extraordinary evidence.

This was based on a nearly identical statement by fellow founder of the Committee for the Scientific Investigation of Claims of the Paranormal founder Marcello Truzzi, "Extraordinary claims require extraordinary proof.

This idea originated with Pierre-Simon Laplace - 1749-1827, a French mathematician and astronomer who said, "The weight of evidence for an extraordinary claim must be proportioned to its strangeness.

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