idea
Question Everything
Without getting into the issues of your application of relativity, I don't see how your argument follows. In a constrained universe with only a single particle, then yes nothing else would exist (including velocity). But we don't live in such a universe.
The argument "if there were only a single electron, everything else (including velocity) would not exist" doesn't mean that in a universe where other things do exist we can't speak of individual entities or particles without reference to other entities or particles. The fact that three apples wouldn't exist in a universe with only one electron doesn't mean I can't talk about the apples, or add two more apples, and so on. The inability of things to exist without other things doesn't mean we can't think of or conceive of these things singularly.
not "if there were only a single electron, everything else (including velocity) would not exist" " but instead The argument "if there were only a single electron, the single electron would have no charge, no spin, no velocity, no mass, no identifiable traits to define it with"
the single entity does not exist except in relative terms.
macroscopic positions / energies etc. etc. are not quantized - so there are an infinite number of relative positions / potential energies / kinetic energies two objects can have with respect to one another. (an infinite number of different reactions people can have to one another too) new information is obtained through new interactions - so it's an unbounded system.On what do you base this assertion?