So once you spend a bunch of money on this, a couple of years pass, and a large chunk of software starts requiring twice the resources compared to today, how do

So once you spend a bunch of money on this, a couple of years pass, and a large chunk of software starts requiring twice the resources compared to today, how do you upgrade the machine? Miniaturization is great, but couldn't manufacturers like Apple still use sockets instead of soldering everything on their boards?