Gravity is astonishingly weak, yet dominates the universe

Chown highlights a genuine paradox: of the four fundamental forces, gravity is by far the feeblest — a small magnet can lift a paperclip against the gravitational pull of the entire Earth. Compared to the electromagnetic or nuclear forces, gravity is many orders of magnitude weaker at the scale of individual particles.

Yet gravity is the force that shapes galaxies, ignites stars, and determines the large-scale structure of the cosmos. The resolution, Chown explains, lies in the fact that gravity is always attractive and always cumulative — unlike electric charge, which comes in canceling positive and negative forms, mass just keeps adding up. Over astronomical scales and quantities, even a vanishingly weak force wins out simply because nothing offsets it.

This reframes gravity's dominance as an emergent property of scale rather than intrinsic strength, and it's part of why gravity behaves so differently from its sibling forces when physicists try to unify them into a single framework. Weakness at the particle scale becomes dominance at the cosmic scale, purely because gravity never cancels itself out.