"Past performance is no indicator of future returns" New things come along, and they don't have to make sense in the old worldview in order to be good. So the

"Past performance is no indicator of future returns" New things come along, and they don't have to make sense in the old worldview in order to be good. So the analysis of 60 year olds, even the really smart ones, is less valuable than it sometimes appears. HOWEVER -- the opposite is also true, "flavors of the month" come and go, and proving worldwide utility takes more than convincing a lot of people to buy for a period of time. It's going to take years to see the outcome and who is right. Humans are absolutely fucking terrible at predicting the future. Don't buy the hype. Do your own research, run your own experiments, and hedge your own risk.