High performance, nanometer-scale silicon would obviously still have to be manufactured the classic way, because, nanometers. But, instead of buying a precious tablet, you order a ribbon of of peel & stick wafers, of commodity CPU and RAM chips. You then stick them onto a printed, flexible nv-mem + screen to enable it to compute at modern speeds.
As people get used to disposable, custom electronics, they learn that for most of what they do with a single sheet of "paper", they actually need very little computing power. Rugged, cheap, micrometer-scale CPUs make a comeback. Kids study them in grade school, using an ordinary optical microscope. IC designers start to optimize for readability. The general public begins to take responsibility for their hardware and software stack, the way they take responsibility for their vehicle and their home.
/dream