Mutual Knowledge, Common Knowledge, and Joe Biden

by John Allen Paulos Several years ago the Nobel committee selected two economists, Thomas Schelling of the University of Maryland and Robert Aumann of Hebrew University, to receive the prize for their stellar work on game theory. Aumann has contributed many seminal ideas with real-world applications, one in particular that is especially relevant today. It…

Kurt Gödel’s Loophole, the Israeli Supreme Court, and Strange Loops

by John Allen Paulos Kurt Gödel was a logician whose work in mathematical logic was seminal and fundamental. His famous incompleteness theorems, in particular, have changed our view of mathematics and computer science. He was born in Austria and lived through political turmoil there before fleeing the country after the Nazis annexed it in 1938.…

99 Exercises in Style

by John Allen Paulos Raymond Queneau was a French novelist, poet, mathematician, and co-founder of the Oulipo group about which I wrote last year here. The group is primarily composed of French writers, mathematicians, and academics and explores the use of mathematical and quasi-mathematical techniques in literature. Their work is funny, experimental, weird, and thought-provoking. A reader of…

A Cautionary Note: The Chinese Room Experiment, ChatGPT, and Paperclips

by John Allen Paulos Despite many people’s apocalyptic response to ChatGPT, a great deal of caution and skepticism is in order. Some of it is philosophical, some of it practical and social. Let me begin with the former. Whatever its usefulness, we naturally wonder whether CharGPT and its near relatives understand language and, more generally,…

Ten Irreligious Questions for Politicians and Others

by John Allen Paulos The separation of church and state seems to be dissolving. It’s becoming increasingly easy for politicians and other public figures to cross the line between expressing their faith and aggressively proclaiming it and its alleged real-world consequences. Although often leading to social strife and intolerance, such overweening proclamations are growing in…

Assessing Military Edge with Lanchester’s Square Law

by John Allen Paulos Lanchester’s square law was formulated during World War I and has been taught in the military ever since. It is marginally relevant to the war in Ukraine, particularly the balance between the quantity and quality of the two armies’ weapon systems. Although more accurately expressed in terms of differential equations, Lanchester’s…