Eventually, when governments realize they can't stop Bitcoin, prevent it, or slow it down, they will realize they should be buying it as fast as they can.   

At some point this will happen very quickly, because governments cannot afford to be left behind once the rest of the world, or even just one big government starts to HODL.  It will be like a nuclear reaction, where the nuclear mass reaches supercritical, and there will be FOMO on a world wide scale.

Perhaps hopium, but plausible.