“For a tiny fraction of a second after the Big Bang, the universe
expanded incredibly rapidly before settling into its present state.”
Do we live in a matrix? Well,
to honest with you, I have absolutely no idea of how I could explain the reason
why I’m asking you this crazy question. I don’t even know if there is anything
that can be explained in this world. The only thing I know is that reading is
one of the most important skills in any language – or at least I believe it is.
Taking that into account, I just would like to share this article with you – it
has been recently published and brings some food for thought, especially for
those who love Stephen Hawking and Physics – so that you may improve your
reading skills by reading it.
Stephen Hawking
has revealed from beyond the grave his final scientific theory - that the
universe is a hologram.
The cosmologist,
who died on March 14, has challenged previous theories of cosmic
"inflation" and the "multiverse" in a new paper published
in the Journal Of High Energy Physics.
Scientists
generally believe that for a tiny fraction of a second after the Big Bang, the
universe expanded incredibly rapidly before settling into its present state,
filled with stars and galaxies - the inflation theory.
But some have
proposed that, on a grander global scale, inflation goes on forever, giving
rise to a "multiverse" - a number of different universes with their
own laws of physics.
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."
Working with
Belgian colleague Professor Thomas Hertog, Prof Hawking extended the weird
notion of a holographic reality to explain how the universe came into being
from the moment of the Big Bang.
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.
Hawking and
Hertog's variation of the holography theory overcomes the problem of combining
eternal inflation with General Relativity.
Prof Hertog,
from the Katholieke Universiteit Leuven (KT Leuven), said: "It's a very precise mathematical
notion of holography that has come out of string theory in the last few years
which is not fully understood but is mind-boggling and changes the scene
completely."
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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