At 3:04 Carlo refers to the following line from Bertolt Brecht's play "The life of Galileo" - Galileo says, “We shall start our observations of the sun with the inexorable determination to prove that the earth stands still. Only when we are defeated, utterly and hopelessly defeated, and are licking our wounds in the most miserable dejection, shall we begin to ask ourselves whether we may be right after all and perhaps the earth does move!” Thanks for sharing the interview.