you dont get it, youre like these guys 20 years back who said that a computer doesnt have to have more like 32 megabyte of RAM or more than a 10 GB harddisk.
at some point it may be normal that you download holographic movies in realtime, or that we all have these 3D printers at home and you can download the complexest things and print them yourself, each file having 100 gigsn. so bandwidths will constantly go up up to a technological threshold, but not a psychological one.
obviously, we dont "need" anything of that, but we're acting like we do.