I wouldn’t be surprised if we end up with ram-less systems soon. A lot of programs don’t need much more memory than the cache sizes already available. Things like electron bloat memory use through the roof, but even then it’s likely just a gigabyte or two. Cpus will have that much cache eventually. The few applications that really need tons of memory could be offloaded to a really fast SSD, which are already becoming the standard. I imagine we’ll see it in phones or tablets first, where multitasking isn’t as much of a thing and physical space is at a premium.