I understand it's simpler to store everything, and simplicity _is_ a virtue; but one could store the current revision plus deltas (and perhaps a few intermediat

I understand it's simpler to store everything, and simplicity _is_ a virtue; but one could store the current revision plus deltas (and perhaps a few intermediate revisions for oft-edited articles), and obtain performance at least as good as in the current case. It would also save lots of space.