There is no solution to the problem that currencies can become worthless. It is a fundamental aspect they have, because any commodity, artificial or otherwise, can become worthless. If change stopped, this might cease to be true, but in a world where in 100 years we may be seriously talking about the needs of our uploaded consciousnesses in the war against the bad AIs, or we may be a hunter-gatherer society again (and I'm using a 100-year-horizon just to highlight the problem but it's true on shorter timescales too), there simply isn't any safe, reliable value store.

woodall didn't say dollars won't hyperinflate. (S)He said the US "will be forced to deal with the consequences". Not the same.