Shopping malls are basically roofed cities. The roofed cities concept has been a very popular nation of the utopian literature of that time. I think one day we'll reach that state. We're just not yet there.
Yeah, but roofed cities doesn't mean the city is a huge building like you probably imagine but the idea behind it is the ability to stay dry when it rains etc. So maybe we should talk about roofed sidewalks instead.
How could they miss the obviousness of the domes and flying cars we use today?