Blockchain could make easier to implement the vision of complementary curencies from https://www.amazon.co.uk/exec/obidos/ASIN/0712683992/transac... Bernard Latier is prophetic in "The Future of Money: Creating New Wealth, Work and a Wiser World". Aloso, Blockchain could enable some sorts of decentealised UBIs. Unfortunately the first wave was too libertarian in its culture and not focused on doing really good things for the world. Too much greed, fear and short sighted decisions. But this wave proved that the monopoly on money is an acident and not a necesity. This could be very huge. When many people start believing it just becomes reality..