The best cache refresh is a complete crash of the operating system. 

It cannot and will not happen without a complete delegitmization of the old financial system.

Ideas die only after they haven been defeated by a superior idea and caused enough suffering in the process for people to move on. Example: nazism (crushingly defeated as an idea that caused loads of suffering) and communism (took much longer to defeat, suffering not present in the minds of Western people).

Fiat replaced gold because those in charge disproportionately benefit from it. Thus, it will not simply be driven out by a superior tech stack because those in charge have disproportionately much control over its removal. 

Bitcoin has to prove itself superior as a tech stack AND idea to be widely accepted as currency, and not just SoV. Currently, Bitcoin cannot even fully convince its proponents of its tech stack, see security model discussion.