Why does a moving object keep moving? - The secrete of Inertia
Why Things Keep Moving Expansion Freedom Theory Why Does a Moving Object Keep Moving? The question Newton left unanswered — and what the universe's expansion has to do with it JongJin Ma · September 2026 · Full paper on Zenodo ↗ A hockey puck slides across frictionless ice. It doesn't slow down. It doesn't stop. It keeps going — indefinitely. Everyone accepts this. Nobody explains it. Newton's first law of motion — a body in uniform motion continues unless acted upon by an external force — is among the most tested statements in all of physics. But here is what textbooks quietly skip over: why does the velocity persist? What maintains it? The law describes what happens. It offers no mechanism. For three centuries, this has been treated as a primitive axiom — a given, not a theorem. My Expansion Freedom Theory (EFT) proposes that this is a mistake, and that the answer has been hiding in plain sight: the universe is exp...