The flying V airbus is developing has a seating arrangement where passengers directly face each other. I wonder if it might result in additional personal conflicts over long flights. The hydrogen infrastructure for mass produced vehicles like the flying v also does not yet exist. A catalyst to more efficiently split h20 atoms into hydrogen and oxygen, by conducting electricity through water(electrolysis), has been announced a few times over the past 20 years. But no proof of concept prototypes have materialized.

I hope airbus succeeds with their wave of the future proposal but it looks as if they could have their work cut out for them.