Relativity doesn't apply to acceleration. If there were two bodies in the universe, and one accelerated away from the other, it doesn't depend on perspective. E

Relativity doesn't apply to acceleration. If there were two bodies in the universe, and one accelerated away from the other, it doesn't depend on perspective. Each body is capable of independently determining whether it was the one accelerating, and both would come to the same conclusion. The same applies to rotation. Accelerometers placed on my floor and on my body will detect the difference, and both will agree.