Money is a tool for facilitating peace within and among communities. So if the predominant form of money fails, which is highly probable under this fiat system, society will collapse into violence and chaos as typically happens when wealth disparities grow large enough for the common man to realize that something is wrong. In response to this I would start looking at building a new life in a location where the economy may be less developed but the money is harder, and start working on Bitcoin 2.0.