> we could easily make a new "dumb" memory slot standard that would allow us to swap out the chips directly - like we have for CPUs.
You could, but it would take up a lot of space, given the higher pin count, and would most likely increase power consumption.
And even if the DIMM design (it's more than just a slot) doesn't make sense anymore, we could easily make a new "dumb" memory slot standard that would allow us to swap out the chips directly - like we have for CPUs.