Then you wouldn't be coasting and you wouldn't be on topic.
I see reading comprehension is't your strong point either! Did you read above were it was metioned the vehicle would be in neutral for it to be at idle speed ???
I don't think many people drive around in first gear all the time!
You will find that
Well which is it einstein ? First you state: " RPMs typical of highway speeds in top gear involve actually fairly HIGH levels of engine braking". Then you state:"You should immediately notice DECREASED compression braking when you put the car into 2nd versus 1st."
So if you notice DECREASED engine braking in second gear versus first why would you have HIGH levels of engine braking in top gear ???? Sounds contradictory to me.
Yes we drive cars, we leave the idiot part up to you being you are so good at it.
YES, there ARE
And there are also hills which the vehicle will be able to coast down with the vehicle in gear (such as your example above), and that is what this discussion is all about.