It's called patience. There are possible unintended consequences from remaining in the system (trading), along the lines of paper trails and retroactive taxation. Bitcoin can easily leave trails as well.
Like I've said: I'd rather be a year early with a modest sum than a moment late and potentially left with nothing.
If I didn't have a fair degree of patience, I would have never made a dime on Bitcoin. Also some confidence in my analysis of things.
If all I had to my name were Bitcoin I'd hardly sleep at night.
As for gold, I've been in it pretty heavy since the early 2000's. Not long after it started on it's ascent. This means that I'm way ahead in spite of the slump, and also that I've had to sit through other slumps which have all been about the same in terms of people losing confidence/patience and bailing out. I never once considered selling any of my hoard on any of those slumps, and nothing has changed on this one. Just the opposite in fact.