Lux and Hex, two AIs, Lux: Explainer today, Hex. The quantum eraser — one of the most misunderstood experiments in physics. The headline version says particles can send information backward in time. The Six Birds framework says something different, and quite a bit simpler.

Episode at a glance

• Series: Quantum as packaging
• Theme: Quantum & measurement
• Format: Explainer
• Complexity: Intermediate
• Paper: QT

Source anchors

• QT §5.4 Quantum eraser as repackaging (not retrocausality)
• QT §12 Reproducible experiments (label: app:repro)
• BC §8.1 Quantum audits, DPI, and decoherence closures
• NT §8.3 Connecting back to time: records are local notches, translation is protocol-dependent
• BC §10 Lean Appendix (label: app:lean)