  The objective, classical world emerges from the underlying quantum substrate
via the proliferation of redundant copies of selected information into the
environment, which acts as a communication channel, transmitting that
information to observers. These copies are independently accessible, allowing
many observers to reach consensus about the state of a quantum system via its
imprints in the environment. Quantum Darwinism recognizes that the redundancy
of information is thus central to the emergence of objective reality in the
quantum world. However, in addition to the "quantum system of interest," there
are many other systems "of no interest" in the Universe that can imprint
information on the common environment. There is therefore a danger that the
information of interest will be diluted with irrelevant bits, suppressing the
redundancy responsible for objectivity. We show that mixing of the relevant
(the "wheat") and irrelevant (the "chaff") bits of information makes little
quantitative difference to the redundancy of the information of interest. Thus,
we demonstrate that it does not matter whether one separates the relevant
information) from the (irrelevant) chaff: The large redundancy of the relevant
information survives dilution, providing evidence of the objective, effectively
classical world.
