  A thought experiment considering conservation of energy and momentum for a
pair of free bodies together with their internal energy is used to show the
existence of states that have localised position while being eigenstates of
energy and momentum. These states are applicable to all varieties of physical
bodies, including planets and stars in free motion in the universe. The states
are compound entanglements of multiple free bodies in which the momenta of the
bodies are anticorrelated so that they always sum to zero, while their total
kinetic energy is anticorrelated with their internal energies, so the total is
a constant, E. The bodies are relatively localised while the total state has
well-defined energy and momentum. These states do not violate Heisenberg
uncertainty because the total centre of mass is not localised, hence the states
naturally describe whole universes rather than isolated systems within a
universe. A further property of these states, resulting from the form of the
entanglement, is that they display nonlocality in the full sense of signal
transmission rather than the more restricted Bell sense.
