The world is a completely different place today. If you don't believe me put all these historic times in a table with these columns: time to circumnavigate the

The world is a completely different place today. If you don't believe me put all these historic times in a table with these columns: time to circumnavigate the earth, mean communication time between individuals, global population, CO2 concentration, diversity of life on earth, most powerful weapons, GDP, trade as % of GDP, performance of "mechanical" chess player, # and % of the world economy of "global" corporations. If you look at things going on at the national level today in the US, Turkey, Britain, Russia, China you can see clear influence of global events. The Middle East and Africa clearly influences all the above in major ways and the US withdrawal from involvement there, if even possible (not), will not change that. The economy of China influences the entire world's economy. Look at countries like Switzerland and Canada who have traditionally tried to stay neutral and perhaps internal focussed in some sense, the Canadian economy has been hammered by the drop in commodity prices. The Swiss had to break their traditional banking secrecy due to external pressures. Climate change is affecting pretty much everyone and the risks it presents are almost unprecedented in human history. EDIT: Look at how quickly a disease can spread to the entire planet. SARS, flu, Ebola...