June 13, 2015 (Source: http://www.orthodoxchristianbooks.com)
Of all the crazy ideas thought up by the wit of man, perhaps the most absurd is the new physical idea of the “multiverse”. Frank Close, professor of physics at Oxford University, explains that the idea of the “multiverse” – the existence of multiple universes – is, together with string theory, one of the “two leading theories that attempt to explain the most fundamental characteristics of the physical world”. But Close readily admits that it has one or two problems…
The first is that it is untestable and unfalsifiable, which makes it, strictly speaking, not science at all. “As there is no possibility of communication between us and other universes, there is no empirical way to test the multiverse theory. George Ellis makes the point explicitly: ‘In a general multiverse model, everything that can happen will happen somewhere, so any data whatever can be accommodated. Hence it cannot be disproved by an observational test at all.’ By implication, the multiverse concept lies outside science.’”
So one of the two main mega-theories of contemporary physical science is not science at all. (Close thinks that the situation is a little better with the other mega-theory, string theory, but only just!) Physics was meant to exclude the need for metaphysics, untestable philosophy – but it seems that metaphysics is making a come-back!