I do not think we could have 1TB ram inside the CPU for Server use. Maybe in 10 years, but not now. That is the big game changer of the M1/2 is that the ram is built into the CPU not needing a bus to move through. I believe it is as big of a leap in speed as spinning disk to SSD. Yes, it sucks for upgradability of ram, but the speed difference is by far worth it.