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Study reveals substantial evidence of holographic universe

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Re: Study reveals substantial evidence of holographic universe

#41

Post by klodolph »

xyzzy4 wrote: post #36
atomicfiredoll wrote: post #25

Earlier quoted context omitted.

This is the first time I've read anything about Holographic universe theory and I really don't understand anything about it yet. But, does this mean we were the ones living in a 2-dimensional "flatland" the whole time?

I think it means the max amount of information in the observable universe is bounded by the amount of information that could fit on the 2D surface of a spherical event horizon of a black hole of the same size.

That was the origin of the theory, but from what I understand it's been developed beyond that point.

Re: Study reveals substantial evidence of holographic universe

#42

Post by lutusp »

midgetjones wrote: post #24
TwoFactor wrote: post #17

It's interesting that to a layman this seems like almost the exact opposite of what string theory proposes dimensionally. Holographic universe theory is stating there are effectively less dimensions, while string theory shows there could be significantly more.

I'm not sure you're a 'layman' if you understand string theory.

Knowing that string theory requires 11 dimensions doesn't mean one understands it. And even string theorists aren't sure which version of the theory represents everyday reality, and the number of candidates is quite beyond imagining. Finally, to date there aren't any reliable empirical tests to place string theory on a firm scientific foundation.

In the long term string theory may contribute more to mathematics than to physics.

Re: Study reveals substantial evidence of holographic universe

#44

Post by lngnmn »

How a simulation could reveal anything? A simulation has no connection to reality whatsoever. One single major (or even minor) factor missed in the model, and the whole thing is a bullshit. Imaginable factors with real weights - same kind of result.

Simulations and probabilistic estimations could be applied only to fully observable environments.

Re: Study reveals substantial evidence of holographic universe

#45

Post by allemagne »

nabla9 wrote: post #30
wodencafe wrote: post #2

What does this mean? The universe is fake? Is this along the same lines as "everything is a simulation"?

Holographic means that the universe appears 3d but is actually 2d. 'appears' means that for us it is three dimensional. 'actually' means that the amount of stuff universe can hold is limited by 2d surface area, not 3d volume. Information/matter contained in universe is in '2d container surface' while interactions between them seem to happen in 3d universe. In other words, the information/matter you can keep in volume…

Is it misunderstanding things to say that we're like data on a computer? So from my perspective, two atoms on my body are right next to each other. However, they could be theoretically encoded on opposite ends of the universe's 2d surface?

Re: Study reveals substantial evidence of holographic universe

#46

Post by martincmartin »

There's good background information in the Wikipedia article on the Holographic principle:

https://en.wikipedia.org/wiki/Holographic_principle

The latest Scientific American has an article on why some physicists are calling for rejection of cosmic inflation theory:

https://www.scientificamerican.com/article/cosmic-inflation-...

Although it seems to be paywalled.

Re: Study reveals substantial evidence of holographic universe

#47

Post by ORioN63 »

xyzzy4 wrote: post #36
atomicfiredoll wrote: post #25

Earlier quoted context omitted.

This is the first time I've read anything about Holographic universe theory and I really don't understand anything about it yet. But, does this mean we were the ones living in a 2-dimensional "flatland" the whole time?

I think it means the max amount of information in the observable universe is bounded by the amount of information that could fit on the 2D surface of a spherical event horizon of a black hole of the same size.

Is there a why? I got curious.

Re: Study reveals substantial evidence of holographic universe

#48

Post by [deleted] »

ORioN63 wrote: post #47
xyzzy4 wrote: post #36

Earlier quoted context omitted.

I think it means the max amount of information in the observable universe is bounded by the amount of information that could fit on the 2D surface of a spherical event horizon of a black hole of the same size.

Is there a why? I got curious.

[deleted]

Re: Study reveals substantial evidence of holographic universe

#49

Post by Panoramix »

lngnmn wrote: post #44

How a simulation could reveal anything? A simulation has no connection to reality whatsoever. One single major (or even minor) factor missed in the model, and the whole thing is a bullshit. Imaginable factors with real weights - same kind of result. Simulations and probabilistic estimations could be applied only to fully observable environments.

Where did you get that this was a simulation? The were analyzing telescope data.

Re: Study reveals substantial evidence of holographic universe

#50

Post by lngnmn »

Panoramix wrote: post #49
lngnmn wrote: post #44

How a simulation could reveal anything? A simulation has no connection to reality whatsoever. One single major (or even minor) factor missed in the model, and the whole thing is a bullshit. Imaginable factors with real weights - same kind of result. Simulations and probabilistic estimations could be applied only to fully observable environments.

Where did you get that this was a simulation? The were analyzing telescope data.

Analysis presupposes some model.
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