Im not concentrating enough!

The other question I haven’t had answered yet is
100% … Of what?
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I did ask that when I first had one these DAFs but a shoulder shrug was the only answer I got.
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Does “100% anticipation” mean the driver is a clairvoyant able to see ALL the future whilst lesser scores mean a foresight of only days or hours?
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Does “100% Total” mean that zero fuel is being burnt to move the vehicle?
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If the poster with 100 % eased off the throttle even more, will the fuel tank overflow as diesel is created?
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Nothing wrong with driving smoothly and economically, but the DAF system is nonsensical.