PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.

Does Space Emerge From A Holographic Boundary?

Premiered March 21, 2024
Does Space Emerge From A Holographic Boundary?

Space seems fundamental. Many physicists now think that the fabric of space emerges from something deeper. And the most existentially disturbing such proposal is that our 3-D universe is just the inward projection of an infinitely distant boundary. A hologram, or sorts. Let’s see how that can actually work, and what the holographic principle really says about the “realness” of this universe.

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