3 ms·

> I’m not entirely sure how different it is to the holographic principle in which the information is encoded on the surface of the black hole... Kind of off to

> I’m not entirely sure how different it is to the holographic principle in which the information is encoded on the surface of the black hole... Kind of off topic, but once I learned about the holographic equivalency of black holes, and the idea that our entire universe may be nothing more than a hologram on a 2D surface, it always seemed plausible to me that the expansion of our universe could be thought of as actually an accelerating shrinkage. In other words, if you imagine the universe as a 2D membrane of fixed size, but ever-increasingly complex holographic encoding on the membrane, then the 3D projection of that encoding would appear to be expanding (from the perspective of someone inside the hologram) relative to the fixed membrane size. However, from an outside observer, the 3D projection would appear to be shrinking as the hologram grows more complex. I realize that this metaphysical idea implies information is being constantly created to fuel the increasing complexity of the hologram. In my mind this is like propogating waves on an enclosed plane like an imperfect sphere, continually interfering with themselves on the return trip, gerating exponentially more wavelets at each encounter. Are there any theories out there like this (i.e. our universe expanding or shrinking, depending upon the perspecing of the observer)? I've always been curious.

dogma1138 9y ago
I'm not attempting to claim subject matter expertise but I would like to raise two points. 1) If your hypothesis assumes that information is actually created then it's either wrong (as it's contradictory to our current understanding of physics) or you need to describe a mechanism through which information can be created or added to our universe from an external source. You might be able to contrive a mechanism through which the expansion is simply a byproduct of the every increasing entropy but I don't understand why would it then appear to an observer that the total area of the hologram is shrinking. A hologram cannot hold more data without expanding it's surface area (adding additional dimensions to a hologram to make it more complex would also impact "our universe" in this analogy), the popular science "formula" for the total information that can be stored in a hologram is basically it's information density (which has a limit) x it's surface area. Now you can say that our universe is encoded in a hologram that hasn't reached the Bekenstein bound so the information density of it can increase but again that would require some sort of a mechanism that I'm not aware off, but I'm not an expert or even particularly knowledgeable in this matter to be able to have a truly constructive discussion. 2) A theory that describes the "true nature" of the universe is useless unless it gives new predictions or new tools to explain existing phenomenon. It doesn't really matter if our universe is encoded on the surface of a black hole in another universe, is one of many bubbles of the foam that makes up the multiverse or is it one of many marbles in the marble bag of some alien teenagers from the trans dimensional universe five-nine-alpha.
- mojomark 9y ago
  Good stuff. Thanks for the thoughtful reply. I do think that if the driver for our universe's accelerated expansion were understood to be a matter of perceiveing an effect of the activity on the holographic membrane rather than 'a push' from some yet do be discovered energy source in a non-holographic model, that could open the door to new discovery. Regardless, I think I'm going to stick with the 59A Marble Bag hypothesis and crawl back into my mechanical engineering design site where I belong.

dogma1138 9y ago

I'm not attempting to claim subject matter expertise but I would like to raise two points. 1) If your hypothesis assumes that information is actually created then it's either wrong (as it's contradictory to our current understanding of physics) or you need to describe a mechanism through which information can be created or added to our universe from an external source. You might be able to contrive a mechanism through which the expansion is simply a byproduct of the every increasing entropy but I don't understand why would it then appear to an observer that the total area of the hologram is shrinking. A hologram cannot hold more data without expanding it's surface area (adding additional dimensions to a hologram to make it more complex would also impact "our universe" in this analogy), the popular science "formula" for the total information that can be stored in a hologram is basically it's information density (which has a limit) x it's surface area. Now you can say that our universe is encoded in a hologram that hasn't reached the Bekenstein bound so the information density of it can increase but again that would require some sort of a mechanism that I'm not aware off, but I'm not an expert or even particularly knowledgeable in this matter to be able to have a truly constructive discussion. 2) A theory that describes the "true nature" of the universe is useless unless it gives new predictions or new tools to explain existing phenomenon. It doesn't really matter if our universe is encoded on the surface of a black hole in another universe, is one of many bubbles of the foam that makes up the multiverse or is it one of many marbles in the marble bag of some alien teenagers from the trans dimensional universe five-nine-alpha.

mojomark 9y ago
Good stuff. Thanks for the thoughtful reply. I do think that if the driver for our universe's accelerated expansion were understood to be a matter of perceiveing an effect of the activity on the holographic membrane rather than 'a push' from some yet do be discovered energy source in a non-holographic model, that could open the door to new discovery. Regardless, I think I'm going to stick with the 59A Marble Bag hypothesis and crawl back into my mechanical engineering design site where I belong.