The way I think about it, things are always in movement. For the last couple of decades the movements have been difficult to see, they've been underground, but now just happens to be the time for a big and inevitable rebalancing. What I mean is, I try to think that all this fluctuation is just natural and I shouldn't worry more than usual. The question, then, is: how much should we worry usually? I try not to worry too much, certainly not much more than is in my power to affect things. I read Seneca and Nassim Taleb when I feel that I need strength.