Newcomb's Paradox: A super-accurate predictor offers two boxes. Box A: $1,000 visible. Box B: opaque—$1M if predictor thinks you'll take only B, or $0 if both.

Choice: Take both (guaranteed $1K + possible $0) or just B (trust predictor for $1M)?

Debate: Rationality vs. prediction. One-boxers trust the system; two-boxers grab all.