Is the US Going to Reverse the US?

The Japanese have a structured and deeply aging economy overburdened by future retirement claims, terrible demographics. Britain doesn't know what's going to happen if they do the exit from the European community or stay in. The US portfolio is up about say 750% and the non-US portfolios is up about 275. So I committed the elements in very, I was right. Does that mean I will be equally right in the future? I can't imagine it.