Great strides being taken in aviation.

However am I the only one thinking we need to pull back the focus solely on range and start considering speed again? Like the Concorde?

People here and others are horrified at the though of spending 18+ hours in an aircraft non-stop, when they really don't need to if speed was increased.

There is a myriad of other advantages, say if a 15 hour flight was reduced down to less than 10 hours. For example, ROI per aircraft would increase (from running more sectors), less staffing costs per flight, potentially lower catering requirements etc. I don't think fuel burn would decrease unless new tech comes into play.