> The other thing is, once disks are as fast as RAM, there's really no point in having RAM. You make it sound like RAM is only used as a cache for disks, but t

> The other thing is, once disks are as fast as RAM, there's really no point in having RAM. You make it sound like RAM is only used as a cache for disks, but there are other reasons to have RAM: * RAM supports basically unlimited number of reads and writes, which (to the best of my knowledge) our current disks don't * it serves as a central integration point for all sorts of IO: disk IO, network, interface to GPU etc * volatility can be a feature (switching off a device wipes RAM)