When the Physicist and the Computer Scientist Walk Into a Quantum Bar
SAS Innovate Pre-conference session A Technocrat’s Discernment, originally partially written on Quantum Day 2026. Then I was in the SAS Innovate 2026 pre-conference workshop, and ended up reframing the article around these two quotes. I sat in a dimly lit conference room at SAS Innovate this week, half awake from the keynote coffee, when a slide appeared on the screen that quietly forced me to put my notebook down. Two quotes, side by side, separated by a thin red line and about thirty seven years of intellectual history. David Deutsch, in 2011, insisting that the theory of computation has been mistakenly treated as a topic in pure mathematics, that computers are physical objects, and that what they can or cannot compute is determined by the laws of physics alone, not by mathematics. And then below it, Donald Knuth in 1974, claiming the opposite with an almost mischievous calm. Computer science, he said, is somewhat different from the other sciences because it deals with artifici...