Speed and Energy

In the Velcro universe, energy is stored as size. This means that an increase in energy has the exact same effect as an increase in number of neutrinos. Everything grows, and time slows down.

If we put our astronaut into a spaceship with a limitless supply of fuel, he and his spaceship will increase in size as they accelerate through space.

A consequence of the increase in size is that further increase in speed becomes more difficult. Inertia increases in proportion to the energy and overall size of the system. It takes more time to make the energy transfer from fuel to spaceship. Seen from outside, we note that it takes ever more time to increase the speed of the spacecraft.

However, the astronaut on board the spacecraft notices no change in acceleration. His clock is slowing down in proportion to the slowing down in acceleration. Measured locally, with a local ruler and clock, the acceleration is always proportional to the fuel spent.