Sorry, but that's the most idiotic hypothesis I've heard in a while. ;-) Being able to guarantee that all your data will always fit in as much RAM as you can a

Sorry, but that's the most idiotic hypothesis I've heard in a while. ;-) Being able to guarantee that all your data will always fit in as much RAM as you can afford is a luxury that almost nobody has. There's still an order of magnitude between common disk and DIMM sizes.