When you decide to sell, be it today or tomorrow or whenever, chances are you will sell at the bottom. This will cause you massive depression, way worse than not selling at the peak to rebuy cheaper.
Buy and hold, or risk selling at the bottom and losing your position. After this dip stabilizes, we are going $2000.
We know that bitcoin price will rise without knowing how much it can be reach in the future, 1-5-10-20-50 years later.
I am sure bitcoin won't vanish and still be number one of all cryptocurrencies, but how about us? How much bitcoin I will hold and still save in my wallet until those time will be matter. I don't want to regret to sell my bitcoin at the bottom.