These Physicists Say They Found The Origin Of Reality
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Sabine Hossenfelder·Science & Education

These Physicists Say They Found The Origin Of Reality

TL;DR

Physicists using Quantum Darwinism claim reality emerges when quantum systems repeatedly copy information into the environment, with observer agreement increasing as measurements become more precise.

Key Points

  • 1.- Quantum mechanics allows different observers to reach inconsistent conclusions about reality, a problem rooted in the undefined nature of 'measurement' in quantum theory.
  • 2.- Quantum Darwinism, a 20-year-old framework by Wojciech Zurek, proposes that classical reality emerges when quantum information reproduces itself in the environment — the most-copied result becomes 'real'.
  • 3.- The new paper provides a precise, quantified characterization of when quantum effects fade into classicality, showing the transition is gradual and observer agreement grows with measurement precision.
  • 4.- Host Sabine Hossenfelder rates the paper 3/10 on her 'bullshit meter,' arguing it sidesteps the core problem by requiring a hand-picked system/environment distinction that quantum mechanics itself doesn't provide.

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