Originally Posted by chornedsnorkack
OK, a stupid question - why shouldn´t the lower lobe be pressurized to a higher pressure? It has to carry bending loads due to its own weight and the weight of passengers, seats, galleys/lavatories and cargo placed on it... pressurizing the underbelly to a higher pressure would help with that...
Not so stupid - structurally that idea makes sense, IMHO.
But the added systems complexity (trying to compensate for zero g, +2 g, full pax, unloaded etc.) seems to make the cure worse than the disease.