[Dylan16807]

This is very much a nitpick but a million million bits is 116GB and you can squeeze 192GB of RAM into a desktop these days, let alone a workstation or a server. (Even if mdspan forces bytes, you can fit a million^2 elements into a server.)

[michelpp]

Fair enough, showing my age with "impossible".

But still true that dense growth is not linear but quadratic to the number of nodes.