As in the context of ” we may be living in a holographic creation/world?” Please keep it very very simple.
In: Planetary Science
Normally when people say “Hologram” they’re talking about a volumetric display, which is a sort of 3D projection into the open air. This is not what’s being talked about here.
A hologram, an ACTUAL hologram, is a 3D image stored on a flat surface. [Here is a picture of a hologram of a mouse at two different angles.](https://upload.wikimedia.org/wikipedia/commons/5/5f/Holomouse2.jpg) It’s essentially a 3D photograph, as in you can rotate it to view the contents of the picture at different angles. It almost looks like you’re looking into a window when you see one.
So, 3D image stored on a 2D surface.
There are some models of the universe in which the universe is a 2D object, where the “3D information” is stored on its 2D surface, like a hologram. This has no real practical implications for our lives, and is merely a possibility for the topology of the universe.
Black holes are believed to do this, where the information of what’s gone inside of them is stored on the surface of the event horizon as a sort of hologram.
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