Agreed, but this will be a costly R&D venture unless there is a eureka breakthrough, like an engine with a new type of fuel allowing it to give more power.

Ideally it would be an aircraft that can fly even just 30 to 40% faster without increasing the amount of fuel needed vs. current aircraft and keeping the range. I can see a 12 hour trip turning into an 8 hour one, or a 6 hour trip being just under 4 hours as a great incentive for airlines to buy it.

For now the focus is on range and fuel efficiency which I understand, but even flying in J... 20 hours on a plane is not something I would enjoy. Heck even the SFO - SIN direct was too long for me and I still prefer SQ 1/2.