You can indeed pay your property taxes in two municipalities, but just try to use it for your income tax. You can also make blockchain a part of an investment portfolio if you choose, but it won't fall into the cash and equivalents portion, the fixed income allocation or even the equities component. It's a pure casino play, somewhere below the pink sheets and the OTC markets, and a shady casino at that.
The problem with blockchain is structural and revolves around the limits on the processing rates resulting from the need to get the transactions registered in the decentralized chain combined with the volatility that causes the value at the time the transaction is registered to vary greatly from the value at the time the transaction was carried out. The only way to circumvent that bottleneck is to have a central registry but that defeats the primary purpose of blockchain currencies. Any government or corporate issued blockchain currency will by definition require a central registry and that is, in effect, the situation we already have with fiat currencies with the added benefit that there is an existing trusted exchange mechanism in place that allows the fiat currency to be universally used.
This is a very good read on the in and outs of blockchain and what effect the limitations of decentralization and lack of regulation have.
