This question may sound dumb, but what is the slowest Velocity possible? Say a car is parked in a parking lot perfectly flat on the concrete ground, is the car perfectly still? Or does the interactions of the cars tire with the concrete produce a tiny flux in movement? I'm guessing that if there is a tiny flux in movement that it cancels out to zero for all macroscopic observations. Lets assume that all background noise is zero for the sake of argument.