This is the correct answer. Bitcoin is the hardest money ever invented, at least while SHA256 stays secure. History has shown us that people move their savings from softer to harder stores of value as they become available, eventually making softer forms worthless as a currency (seashells, stones, silver, etc.). Currently we see gold as the hardest form of money but Bitcoin has zero supply elasticity which ensures an increasing stock to flow ratio over time, making it harder. Bitcoin is also in most, arguably all, respects better than gold as a store of value, and will, if it isn't replaced by something better or if a flaw isn't discovered that destroys its advantages over gold, make gold worthless as a store of value in the long run.