Barricelli ‘insisted on using punched cards, even when everybody had computer screens,’ according to Gaure. ‘He gave two reasons for this: when you sit in front of a screen your ability to think clearly declines because you’re distracted by irrelevancies, and when you store your data on magnetic media you can’t be sure they’re there permanently, you actually don’t know where they are at all.’
— George Dyson, Turing’s Cathedral.