Perhaps @BosKonay would be so kind as to move the last few posts into THIS THREAD, as it seems to be covering the same ground.
I guess there's a lot to cover in the debate, and the final calls will be made from a business perspective, with minimum compliance and cost, while maximising return, being the standard.
Not disputing that a hundred year plan would be an advantage for future generations, but I just find it hard to imagine many people in business having that vision - or even caring, as they'll be long dead before their investment pays off.
Also, much as I'd love to see the 071's re-engined to be the future, they can only be rebuilt etc so many times before they just get too old, as @Noel implied in the other thread.
They may have one or two more lifetimes left, whether battery powered, hydrogen powered or OHLE powered.