Is it appropriate to talk about objects that can travel 'near' the speed of light? E.g. compared to a hypothetical observer moving at 'near' zero speed (very close to zero temperature/energy) wouldn't we seem to be moving 'close' to the speed of light. E.g. isn't even traveling 3 meters/second close to traveling at the speed of light when compared to an object that is travelling a trillionth of a meter per second?