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:
completely redundant, it doesn’t tell the driver anything that can’t be learned by looking at the gas gauge.
Fuel level can be determined with the odometer, the gas gauge is redundant.
Fuel level can be determined by knowing trip distance - the odometer is not needed.
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.
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.