Wow, fantastic read.<p>From the concluding section:<p><i>So Mermin was on the right track, but he didn’t get  it quite right: not only  is the
moon  is not  really  there when nobody  looks,  but  it  isn't really  there even when
you do look!   "Physical reality"  is not "real", but information-theoretical  reality  is.
We are not physical  entities, but  informational  ones.   We  are made  of,  to quote
Mermin, "correlations without correlata."   We are not made of atoms, we are made
of (quantum) bits.  At the risk of stretching a metaphor beyond  its breaking point,
what we usually call reality is really a very high quality simulation running on a
quantum computer.</i><p><i>This is a very counterintuitive view of the world, but the mathematics of Quantum
Mechanics  tell  us unambiguously  that  it  is  correct,  just  as  the mathematics  of
relativity  tell us that there  is no absolute  time and space. Entanglement,  far  from
being an obscure curiosity of QM,  is in fact at its very heart.   Entanglement  is the
reason  that measurement  is  possible,  and  thus  the  reason  that  the  Universe  is
comprehensible.</i>