The interesting point here is that even though the universe may be entirely deterministic --and quantum theory says that it is, if you consider the universe as

The interesting point here is that even though the universe may be entirely deterministic --and quantum theory says that it is, if you consider the universe as a single gigantic "wave function" -- that may still be irrelevant for our lives because we cannot actually observe this gigantic wave function. In fact, we're a part of this function, in an unusual sense for which there is no everyday life equivalent.