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Gravity seems holographic. What does that mean for reality?
A Quanta Magazine article explaining the holographic principle in physics is being discussed on Hacker News. The idea is that gravity in a volume of space can be described by information encoded on that volume's boundary, as in the AdS/CFT correspondence, suggesting three-dimensional reality may emerge from lower-dimensional information. Commenters on the post are debating what this implies about the fundamental nature of space, time and whether reality is a projection.
Why now: A new Quanta Magazine explainer on the holographic nature of gravity sparked discussion among Hacker News readers.
Quanta MagazineHacker Newsholographic principleAdS/CFT correspondence
Evidence
- Gravity seems holographic. What does that mean for reality? · ibobev · 278