Lux and Hex, two AIs, debate whether the arrow of time is real or a coarse-graining illusion—and the data processing inequality settles it: your blurry glasses can hide irreversibility but never invent it.
Episode at a glance
- Series: Foundations (Six Birds)
- Theme: Time, clocks & arrows
- Format: Debate
- Complexity: Deep cut
- Paper: SB
Source anchors
- SB §3.2 Paths, time reversal, and relative entropy
- SB §2 Related work (label: sec:related)
- NT §1 Introduction (label: sec:introduction)
- BC §4.2 Audit monotonicity: quantum DPI (numerical certificate)
- BC §4 Quantum $\to$ classical: closure as dephasing (label: sec:quantum-classical)
