SeeSchloss writes: After years of trying to get Britain to switch to the metric system the EU has finally decided to give up the fight. Conversion was initially a precondition for UK's membership of the European Union, in 1973, and the deadline had been regularly extended since then. Should we add back the UK to the list of the three countries in the world which do not use the metric system (Myanmar, Liberia and the United States)? It looks like the more a country waits before switching to the metric system, the more difficult it is, most countries did it while their litteracy rate was low and avoided most of the problems the UK or the US would be facing now. Do you think it is realistic to expect the UK or the US to switch to the metric system now? Do you think such a conversion is even useful outside of technical fields (I hope we all agree that it is needed in space research, for example)?