Volatility decreases the more people who use it. You can see it clearly in the fiat world - the small no-name currencies can move wildly (which is why most of their govts opt to peg them to the dollar). The huge liquid currencies move by perhaps 1% a day, it's a big event when it moves by double digits

After Brexit the pound moved by 10% and the entire planet was having hysterics about it, because it was such a rare event.