Universal wave function, 14
Quantum decoherence makes the macroscopic world appear definite.
In fact, Nature is fundamentally a superposition of definite states.
So the world, either microscopic or macroscopic, is definite in a sense that the universal wave function is evolving deterministically; and
is indefinite in a sense that it is not in a particular eigenstate.
2012.02.27 Monday (c) All rights reserved by ACHK