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What's the difference?

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All stages · Demo 240

Free water

Choice M / F. TBW is 0.6 L/kg (0.5 if female). Deficit is TBW times (Na/140−1). Jev never multiplies 0.6. Missing Na cannot deficit.

ChoiceFree water deficit in JS

A dial. Male 70 kg at 140 is FW 0.0. The same mass at 154 lights 4.2 L. No sodium stays blank.

replaysex —fw —

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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.