Thursday, 10 April 2025

SPACE FROM TIME

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Here’s a bullet-point summary of the idea that space could emerge from time, based on concepts in modern theoretical physics:


🌀 Space Emerging from Time – Key Concepts

  • Foundational Idea: In some advanced theories, space is not fundamental—it may emerge from more basic entities like time or information.

  • Quantum Gravity Theories: Some approaches to quantum gravity (e.g. Loop Quantum Gravity, Causal Dynamical Triangulations) suggest space arises from discrete events in time.

  • Spacetime as Emergent: Rather than being a fixed backdrop, spacetime itself might be emergent, like how temperature emerges from molecular motion.

  • Causal Set Theory: Suggests that spacetime is a network of cause-and-effect events, with time (causality) being more fundamental than space.

  • AdS/CFT Correspondence (Holography): In string theory, space inside a volume can be described entirely by information on its boundary—suggesting space emerges from entanglement and time-evolving processes.

  • Time’s Primacy: Some physicists propose time exists independently, while space is a byproduct of evolving quantum states.

  • "It from Bit": John Archibald Wheeler’s idea that reality arises from information, hints that time (as a sequence of changes) could be the root of space.


Want a deeper dive into one of these theories or a visual timeline of how this concept evolved?

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