The systems that control financial services have to deal with the practical and philosophical issues that arise, such as whether digital coins are ever stable, what central banks ought to be doing to deal with that, and whether the wild west of Bitcoin and the rest should be left as a gambling thing on the side. Those markets can be volatile—the wild west—but the capacity of software such as open registers and blockchain, and their potential for transparency and in-time and open trading of all sorts of things, could be harnessed for good purposes as well as for the more nefarious ones that feature on the darker edges of the net. On top of that, the demands of climate change will cause a systemic change in the way that things are valued, priced and assessed for value.