One difficulty here, if the idea is to identify policies that should be adopted country-wide, is confounding factors. Say you ban cash, and also introduce a 1984-style police state, and lastly pay for education and health care for all citizens. Crime drops versus the rest of the country. Is it because you're living in a police state, or is it because people are well educated and healthy? This difficulty seems especially problematic when some top level entity is a priori choosing what the new policies will be, versus choosing them as reality indicates.<p>A better system might be to have a number of startup countries, let the people in them choose what laws they will or will not have, and also allow people to move easily between countries, so if the policies enacted in one turn out to suck, people can vote with their feet. And with a large number of countries to choose from, the ones with the best policies will tend to win out over the long term. Say to start, let's have fifty of them.