“Here I should add an explanatory remark to the reader. Though in my daily work I continue to focus on politics and social commentary, I am convinced that absolute truth—or at least stable truths—can be found only in the scientific realm, in chemistry, physics and math, founded on fundamental principles of observation, testable theory, experimental confirmation and Karl Popper’s notion of falsifiability, articulated in his The Logic of Scientific Theory. For a theory to be accepted as scientific, it must be able to be proven false. The problem with the discursive fields of commentary, scholarship, the misnamed “social sciences,” and the Humanities in general (with the exception of music, which is built on mathematical ratios) is the inevitability of bias, prior convictions and assumptions, and partisan viewpoints that can never be ruled out. ”
I have always been fascinated by gravity, mainly because I never understood it. Richard Feynman, who gave us the heuristic diagrams of quantum interactions, famously observed that “Nobody understands quantum mechanics”; the same is true of gravity. Like everyone, I know it as a tugging force, dragging you back as you climb a hill, pulling you forward as you descend—a force needing to be fought, to struggle against going up or coming down. Seeing images of astronauts floating in their space capsules was a reconciling factor; at least we were grounded, a relief not to find oneself in a condition of permanent levitation. Yet it remains a mystery defying resolution and comprehension.
It’s common knowledge that gravity is one of the four fundamental forces of nature. The strong force binds the fundamental particles of matter together to form larger particles. The electromagnetic force consists of two parts, electricity and magnetism. The so-called weak force is responsible for particle decay, Schrödinger’s Cat, and radioactivity, and has been descriptively combined with the former as the electroweak force—models predict it can be united with the strong force as the electronuclear force. Gravity is the feeblest of these forces especially at atomic and quantum scales, resisting unification with the other forces into a single equation.