The Institute of Art and Ideas (IAI) had recently invited me, on rather short notice, to contribute an article to their October issue on the topic Gravity. IAI is the organizer of a big philosophy and music festival (called “HowTheLightGetsIn”), and has a website dedicated to articles, videos, and debates on various topics, all centered around the theme “Philosophy of our times”. They asked me to write about the idea of modified gravity as an alternative to dark matter, and I happily obliged. The article is online now, so check it out here: “Beyond Dark Matter” (side note: I have no clue why they chose the illustration that goes with the article).
You can also enjoy the other articles in this issue, written by a list of distinguished authors: George Ellis writes about what we know about gravity, Sabine Hossenfelder asks whether space-time might be a fluid, David Merritt investigates gravity through the eyes of Karl Popper’s philosophy of science. Andrew Janiak tells the story of how Newton developed his law of gravity, Don Howard looks at how our understanding of gravity has evolved over time, and Valia Allori discusses mismatches between theory and evidence.