"Persist all data" shouldn't be taken as a literal notion. It's better to think about decisions of persistence eventually moving from strongly hardware influenc

"Persist all data" shouldn't be taken as a literal notion. It's better to think about decisions of persistence eventually moving from strongly hardware influenced to purely software- and problem- defined. Just as we've developed abstractions and tools at the persistence ("filesystem") layer now, like snapshotting, similar tools will evolve to take advantage of the new hardware constraints.