In checking over the proofs for my forthcoming book, I have also been checking the citations. One of my citations was to a quote from an essay by MIT physicist Seth Lloyd. The quote I used was “Unlike mathematical theorems, scientific results can’t be proved. They can only be tested again and again until only a fool would refuse to believe them”. It appeared in a compilation of short essays in a 2006 book titled What We Believe but Cannot Prove: Today’s Leading Thinkers on Science in the Age of Certainty that consisted of contributions from more than 100 people who were asked to write a few paragraphs on the following prompt:
Great minds can guess the truth before they have either the evidence or arguments for it. (Diderot called it having the “spirit de divination.”) What do you believe is true, even though you cannot prove it?



