Thanks for a nice, clear overview of this fascinating and potentialy vital field. From my admittedly inexpert point of view, [1] there's a lot to be said for avoiding the waste of energy and processing power of proof of work; [2] scalability has to be tackled, and where it is claimed, verified, if this technology is going to fulfil its promise to 'step in' as the precarious global systems [economic, ecological, cultural] further erode; [3] problems like that which gave rise to the DAO debacle have to be overcome; and [4] super-friendly user interfaces are urgently needed. [You said most of this :)] Somewhat tangentially, I'm hoping somebody does a non-partisan survey and appraisal of the various and diverse political speculations that this technology invokes.