[Ads-l] [for QI] "For every expert there is an equal and opposite witness"

[mr_peter_morris@outlook.com]

Curious about the origin of this phrase. I can't find it in QI archives.

 "For every expert there is an  equal and opposite witness"

Quite often used to refer to expert witnesses in a trial.

Wikipedia calls it Gibson's Law, without identifying who is Gibson.

https://en.wikipedia.org/wiki/Gibson%27s_law

Frequently attributed to Arthur C. Clarke, sometimes called his fourth law.

https://agamya.wordpress.com/2015/07/12/arthur-c-clarkes-three-laws/

Lately attributed to author Jasper Fforde, who appears to have used it in
a 2011 novel, far too late to be its origin.

https://www.goodreads.com/quotes/360598-for-every-expert-there-is-an-equal-and-opposite-expert

Here's an  attribution to Michel (1981), but it's not clear on this limited preview who that is.

https://www.google.co.uk/books/edition/A_User_s_Guide_to_Community_Entry_for_th/HKTYUY91QVMC?hl=en&gbpv=1&dq=%22equal+and+opposite+expert%22&pg=PA5&printsec=frontcover


Can the sleuths of ADS do better?

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