Whenever I see interesting events like this, my first thought is not "what would happen" but always "how could I profit from what would happen [or the uncertainty around it]".
Unfortunately I never know how to answer that question convincingly enough to put my money where my mouth is. Does anybody know if there's a place where people discuss these sorts of things, e.g. a "Hacker News for Financial Markets"? Any interesting ideas for coming out of this on top?
EDIT: Two answers have pointed to gold. Yup, I have already played with investing in gold ETFs, which generated a 20% return over the past 2 years, even after fees. However I was wondering if there were any more ideas specific to the present circumstances, and where, if anywhere, people discuss this sort of thing?