This is one of the arguments for the gold standard, as well. It strikes me that one advantage Bitcoin has over gold is the inability to shave or dilute the coin. The other mechanism used by the state seems to still be in play, though. In war time, governments just issue paper currency and insist that they will redeem it when the war is over. This shifts the taxation to after the war and often it's the losers of the war who are made to pay reparations.