WEBVTT

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Four in the afternoon. Cars stream across the viaduct, the newest with a system on board.

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Since July 2024 every new car registered in Switzerland and the EU must warn a driver who is nodding off.

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The sleepiness scale is the same for every car: the warning fires at eight out of nine.

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But the system warns once sleepiness has already started. It doesn't see it coming.

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It is a last safety net, not a green light. What still matters is how much you slept.

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The warning comes afterwards. The choice is made before the drive.