Chris

There’s no doubt that the later MCU films lose what thin veneer of plausibility the early ones might have had in the way their technology was portrayed. By the time you get to Infinity War/Endgame it’s outright science fiction. But for my money they’re probably truer to the spirit of the comic books for all that. Iron Man might just about have been set in our world. By the time you get to Black Panther, you know this is all somewhere else. From a production perspective though it’s also simpler. Iron Man 2 makes great comedy out of Tony trying to get Pepper to throw him the suit-case while he’s being attacked on the race track in Monaco in IM2, but when Ebony Maw appears in New York at the start of Infinty War there’s really no need, from a production point of view, to spend a lot of time focusing on how Tony gets into the suit. Rather the action demands we just get straight past that and onto the fighting. So the nanotech suit helps drive the story in that sense.