Universe Almost Certainly Not a Hologram

By Duncan Geere, Wired UK

An astrophysicist’s attempt to measure quantum “fuzziness” — to find out if we’re living in a hologram — has been headed off at the pass by results suggesting that we’re probably not.

In October 2010, Wired.com reported on Craig Hogan’s experiments with two of the world’s most precise clocks, which he was using to try and confirm the existence of Planck units — the smallest possible chunks of space, time, mass and other properties of the universe.

Hogan’s interpretation of results from the GEO600 gravitational wave experiment had shown a quantum fuzziness — a sort of pixelation — at incredibly small scales, suggesting that what was perceive as the universe might be projected from a two-dimensional shell at its edge.

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