I agree I would like to see the fuel efficiency go way up.
The amount of fuel some of these jets take off with and the resulting wing loading is for me nothing short of frightening.
If we get the fuel down we can bring the take off wieght down which means less tarmac runway or and even your local grass field. ie you no longer have to trek to a specialist facility
The planes will be a more pleasant to fly and cheaper to run. Less fuel means less fire risk and everyone wins. The spiral goes in our favour.

Mike
( still hiding behind the sand bags for the flak)