Anthropic Selection of Physical Constants, Quantum Entanglement, and the
  Multiverse Falsifiability
  This paper evaluates some important aspects of the multiverse concept.
Firstly, the most realistic opportunity for it which is the spacetime
variability of the physical constants and may deliver worlds with different
physics, hopefully fulfilling the conditions of the anthropic principles. Then,
more esoteric versions of the multiverse being the realisation of some abstract
mathematics or even logic. Finally, it evaluates the big challenge of getting
any signal from "other universes" using recent achievements of the quantum
theory.
