Philosopher: The eighteenth-century thesis that motion is absolute asserts that the change in an object' s position over time could be measured without reference to the position of any other object  A well-respected physicist, however, claims that this thesis is incoherent
Since a thesis that is incoherent cannot be accepted as a description of reality, motion cannot be absolute
generalizing from what is true in one region of space to what must be true in all regions of space