Originally Posted by Aeirum

I don’t. However, I could imagine an aircraft with battery power in conjunction with an efficient range extender (possibly nuclear) just powerful enough for cruise, regenerative speed brakes etc. The possibilities are many. To say that there will never be electric wide-body aircraft with certainty is simple overconfidence in ones own ability to predict the future. Another consideration is that aircraft of the future may all be “wide bodies” regardless of size.