Ha,
You should follow the guy's advice if you really believe that he is right. I have nothing against Mr. Rogers personally and I don't doubt his record, but I will remain skeptical of anyone's ability to predict the future with any measure of accuracy. There are many great investors (including Warren Buffet and Georges Soros) who made mistakes at one point or another in their career and bet their money on the wrong horse, which prove that even geniuses are fallible. Who knows if Rogers happens to be right this time. The fact that he was born in Alabama or went to Yale has nothing to do with his ability to predict the future IMHO.
I will stay on Mr. Bogle's side (which by the way does not mean that I don't agree with Rogers that investing abroad makes a lot of sense).
I really don't get the point of your post. Of course no one is always right. That doesn't mean that the ideas of those who have been frequently right should not inform whatever course we decide to pursue. However, you know the old saying ymmv, and you seem convinced that your mileage will be best with Mr. Bogle. I am not arrogant enough to tell you to do this or do something else; I assume that you have good reasons for doing whatever you do.
As a sidelight, of all the people mentioned above, Mr. Bogle is the only one who has never been an investor. He is a businessman who tells others that it is useless to actively invest.
But for you , I am very happy that you have found your talisman in Mr. Bogle, and that "[You] will stay on his side." I guess I didn't realize that we were choosing up sides.
I do find comments like, "You should follow blank if you think he is right" somewhat aggressive and generally unhelpful. I use this as a discussion board, not as a source of recipes for my personal investing. I don't give recipes either. Your purpose here apparently includes giving advice, at least to me.
For me, although I wouldn't say that I "have followed Mr Rogers advice", those who have been around here a while know that my portfolio has at times been very heavy in commodities and commodity related equities, and probably will tend to stay that way much of the time.
Ha