C'mon man--I just spelled all of that out for you. I'm not talking about a particle. I'm talking about our perspective above:bahman wrote:But the particle exists in both positions, X and Y. So there is not really any motion of particle when our perspective changes. Hence the motion is an illusion in block universe.
For example:
And re our perspective:"Think of a point particle for simplicity." <--I was quoting you there just in case that wasn't clear to you.
--Here we're talking about our perspective rather than just a point particle obviously-- <--I'm explaining how your definition of motion fits talking about our perspective instead.
So OUR PERSPECTIVE HAS MOTION PER YOUR DEFINITION OF MOTION. Not a particle. Our perspective.--Our perspective exists in position X and does not exist in position Y at the initial time--
Thus there is motion in this picture of the universe. Namely, our perspective is in motion.
We cannot say there is no motion in this universe. There IS motion--our perspective is in motion, per the definition of motion you gave.