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What's the difference?

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All stages · Demo 66

Not-A sum

Official pair: P(refund) 0.72 and P(something else) 0.47 sum to 1.19. Do not expect arithmetic identities across calls. Ask the one you threshold.

NoulNoul non-identity

Two needles that are allowed to add up to more than one. The chalkboard does the illegal sum so you can see it.

replaysum —not a partition

P(refund)0%
P(something else)0%

0.00 + 0.00 = 0.00

STANDBY

All 4056 stages

Educational stage on jev.page — not the official TypeSafe console. Live calls go to POST https://api.typesafe.ai/v1/systemone from your browser when you paste a key. Without a key, the stage plays a recorded decision shaped like jev-1.13.0. Jev does not write the UI copy.