With chiplets being a thing these days, I guess this is really about where in the overall system is the best place to put the package boundary and socket/pins?

With chiplets being a thing these days, I guess this is really about where in the overall system is the best place to put the package boundary and socket/pins? And then another approach to that same question would be what apple is doing with in-package ddr5 (which I think I heard amd is copying with a custom line for... Microsoft / azure I think it was?).