Isle of Lewis: Scottish Country Dancing party (in kilts with tie die or Hawaiian shirts), Fascinating interview with Google's Head of AI, Peter Norvig, And here's more about "Layer 2" and why the potentially revolutionary blockchain ledger isn't scalable - and re a single cryptocurrency with blockchain ledger, backed by ~200 countries' central banks, and for a Universal Basic Income to spread this, "How to Use Google Earth and AutoCAD Together"