Bitcoin/crypto allows transfer of value without trust or third party approval. Today the dollar is mostly digital for all intents and purposes. The problem with the dollar is that it is a debt instrument that does not provide for a means of paying the interest with out the creation of more debt. It is by nature confiscatory of labor and buying power. Bitcon is by its nature deflationary and may be replaced by some other systems that are faster, lower cost, and more available for the common people. In my opinion Bitcon/crypto is a hedge against a major failure of the current fiat systems in the world today. If we the people force the issue then we may get to a commodity backed system and that would stop the wealth transfer/war funding that our fiat currency system today enables. But the powers behind the current fait system will not go quietly.