Inertia at Great Speeds

At great speeds, time slows down for ordinary matter. This means that inertia increases.

Inertia is resistance to change in energy. Inertia is the time that it takes to change the energy of a piece of matter from one level to another. This is experienced by us as a sluggishness and resistance to change.

Since time slows down for a piece of matter as it moves faster, we will find ourselves frustrated in any effort to push a piece of matter ever faster. As time slows down for the accelerated piece of matter, the time it takes to change its energy level increases. We experience an increased resistance to change in energy.

At the extreme, where a piece of matter approaches the speed of light, time grinds to a halt and inertia heads for infinity.