[frankc]

Perhaps, but I don't think we should optimize for scenario of going back before these tools existed. Of course you need the medical equivalent of BCP, but it's understood that BCP doesn't imply you must maintain the same capacities, just that you can function until you get your systems back online.

To continue to torture analogies, and be borderline flippant, almost no one can work an abacus like old the masters. And I don't think it's worth worrying about. There is an opportunity cost in maintaining those abilities.