Prof Hawking was always troubled by this idea, which at a fundamental level cannot be reconciled with Einstein's theory of General Relativity. In an interview last year he said: "I have never been a fan of the multiverse." [...]
The new theory embraces the strange concept that the universe is like a vast and complex hologram. In other words, 3D reality is an illusion, and that the apparently "solid" world around us - and the dimension of time - is projected from information stored on a flat 2D surface. [...]
Applied to inflation, the newly published theory suggests that time and "the beginning" of the universe arose holographically from an unknowable state outside the Big Bang.
Prof Hawking said before his death: "We are not down to a single, unique universe, but our findings imply a significant reduction of the multiverse, to a much smaller range of possible universes."
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