Yes, the anemometer again.
An analogy occurred to me the other day, the low-fuel light in the car. When the car gets low on fuel a chime sounds and a light the shape of a gas pump lights on the dashboard. This is a signal that the fuel tank is getting low.
I’d argue that having a low-fuel level light [B]reduces the chances of running out gas.[/B] The reason why is because of the nature of the information.
Now say you have a car and low fuel light does not work. And you run out of gas.
Here is list of arguments that the low-fuel light could not have been a factor:
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completely redundant, it doesn’t tell the driver anything that can’t be learned by looking at the gas gauge.
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Fuel level can be determined with the odometer, the gas gauge is redundant.
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Fuel level can be determined by knowing trip distance - the odometer is not needed.
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Fuel level can determined with a putting a stick in the gas tank, they way we do it on the farm,trip distance is not needed.
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Tank can be filled up by time, for example every so many hours / days. Knowing the level is not needed, only the passage of time needs to tracked.
And so forth. So, it’s 100% true that fuel level can be estimated without a low-fuel level warning.
However none of these arguments really refute the assertion that a low-fuel warning increases the chances that the driver will notice he is running low on fuel.