The Importance of Momentum in the Universe

Under Newtonian physics you could technically go infinitely fast right like if you just kept pushing on an object over a long long period of time which is keep going faster and faster and faster because F equals MA. So what was wrong about those formulas well it turns out our formula for momentum was wrong. We thought momentum was just like mass times velocity and then we thought that quantity was conserved in the universe. Turns out we were missing a term there's another term in that equation this thing we call the boost factor but as you approach the speed of light that number grows to infinity. What it means is momentum is different from what we thought it was. It requires a larger force to change your momentum