But the yen has been going down for the past year and negative rates in Japan haven't worked. I get gold, but I don't really think "safe haven" when I think yen. But I guess I'm in the minority in that regard.
It is because negative interest rates are a dead end of world's economy. It won't work in the long run. I expect them to invest in bitcoin too.
Brexit, is the incentive we wanted, it can push economic markets to ditch standard investment method and start to embrace cryptocurrency in fear of bigger financial crisis.