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What's the difference?

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All stages · Demo 160

QTc mill

Choice bazett / fridericia / hodges. QTc is QT over √RR or ∛RR. Prolonged ≥500 ms hatches human.

ChoiceQTc formula in code

A QT stub trace. Bazett at QT 400 HR 60 lights 400 ms; 520 ms goes long. Jev never takes a square root.

replayformula —qtc —

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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.