The Fabric of Reality

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Tipler replies: The Omega Point exists, but indeed He/She is not part of the physical universe of spacetime or matter. The Omega Point is the future c-boundary — the future singularity — which is not part of spacetime, but is instead the “limit” of spacetime (the mathematical term is “completion”). The irrational numbers such as square root of 2 or pi are equally the limits of rationals (the technical term is “Dedekind Cut”), but nevertheless the irrational numbers just as “real” as the rational numbers. As Deutsch points out earlier in his book, general relativity predicts the existence of singularities, so following the epistemological rules which Deutsch himself has laid down earlier in this very chapter, if a corroborated theory like general relativity says something exists, we have to accept it unless and until an experiment tells us otherwise. In rejecting the existence of singularities, Deutsch is being an inductivist. The Turing Principle tells us the Omega Point exists, and further, some events actually are occurring now in order to force the multiverse to evolve into the Omega Point. Anything that effectively acts on matter is real.