Bitcoin, on the other hand, is great on the 'exchange' side of the spectrum, but I (seemingly alone) do not consider it a good 'reserve' currency. Marry the two (or at least get them being regular fuck-buddies) and one has a very robust solution which would be relatively cumbersome for attackers to meddle with.
why do u think it wouldn't fx well as a reserve currency? nightly settlements btwn nations could occur in an instant unlike gold and no centralized warehouses for bullion would be needed.