by Marcus Choon
July 29, 2011
from PreventDisease Website
The walls, the chair you're sitting in,
your own body - they all seem real and solid. Yet there is a
possibility that everything we see in the universe - including you
and me - may be nothing more than a hologram.
He discovered that
black holes slowly
radiate their mass away. This Hawking radiation appears to carry no
information, however, raising the question of what happens to the
information that described the original star once the black hole
evaporates. It is a cornerstone of physics that information cannot
Later, string theorists managed to show how the original star's
information could be encoded in tiny lumps and bumps on the event
horizon, which would then imprint it on the Hawking radiation
departing the black hole.
The universe does, after all, have a horizon 42 billion light years away, beyond which point light would not have had time to reach us since the big bang.
Susskind and 't Hooft suggested that this 2D "surface" may encode the entire 3D universe that we experience - much like the 3D hologram that is projected from your credit card. It sounds crazy, but we have already seen a sign that it may be true.
Theoretical physicists have long suspected that space-time is pixelated, or grainy.
Since a 2D surface cannot store sufficient information to render a 3D object perfectly, these pixels would be bigger in a hologram.
The GEO600 experiment has yet to find one, but in 2008 an unexpected jitter left the team scratching their heads, until Hogan suggested that it might arise from "quantum fluctuations" due to the graininess of space-time.
rights, these should be far too small to detect, so the fact that
they are big enough to show up on GEO600's readings is tentative
supporting evidence that the universe really is a hologram, he says.
Better evidence may come from a
dedicated instrument being built at
Fermilab, which Hogan expects to
be up and running within a couple of years.
It would show that everything is a projection of something occurring on a flat surface billions of light years away from where we perceive ourselves to be. As yet we have no idea what that "something" might be, or how it could manifest itself as a world in which we can do the school run or catch a movie at the cinema.
Maybe it would make no difference to the way we live our lives, but somehow I doubt it.