The whole concept of decentralizing currency, trade, and development contracts is probably the greatest development since the internet itself.
However, the flip side is as much as we value the new paradigm of cryptocurrency and DAO concept, as being outside the control of normal "systems", gov control, bank control, etc you mentioned a very critical reliance it can not overcome... Water and air cannot be contained, neither can a DAO, unless all electricity on the earth vanished. So we are still chained to the system by the power grids and networks.
That will always be the one weakness in cryptocurrency. Should society have a major setback or collapse, natural or man-made, or if governments decide as a final level of control to sever these networks, the digital world will cease to exist and all its value is lost. Even if I live the free life, off-grid, solar and all - if I cannot connect to the "network" my digital currency becomes as worthless as FIAT paper money.
That's always something in the back of my mind.
Thank you for sharing your thoughts with everyone as always.