Get rid of the ‘flying cigar tube’ design.............
The cigar tube design has a lot of advantages over other designs in terms of stresses due pressurizing the cabin, and also egress during an emergency.
I don’t know why they continue to include passenger windows when a camera/monitor configuration is feasible.
“Get rid of the ‘flying cigar tube’ design”
That’s a bit like saying “get rid of the three box design for a sedan”. Some shapes occur for the reason of practicality.
The only viable options aside from the “cigar tube” is the “flat cigar tube” (aka “blended wing”) where the body acts somewhat like a wing and some sort of true flying wing or V wing.
They do exist, e.g., Natilus Horizon actually flies and the TU Delft (a V wing) is being built.
They should go with the flying donut shape!