Surgeons are the tailors, the plumbers, the carpenters some would say the butchers of the medical world cutting, reshaping, reforming, bypassing, fixing.

If you like that one, or don't like it, you do thumbs up and thumbs down. Over time it tailors the songs so that it completely stops playing bad songs.

Unless countries are using direct intervention to pursue contradictory exchange rate goals, a currency war that generates widespread inflation is highly unlikely. If each country tailors its monetary policy to domestic macroeconomic objectives, exchange rates will settle naturally in a state of Pareto (or maximum) efficiency.

The example of European Jewry is not entirely irrelevant. An oppressed tribe of Ostjuden, destitute immigrants from the shattered communities of Eastern Europe, was transformed in just two generations from God fearing shoemakers, tailors, and wandering peddlers into a community of writers, philosophers, scientists, and tycoons.