Some people, when prices are rising, don't believe they'll fall; when prices are falling, they don't believe they'll rise. Some people, no matter how many opportunities they're given, never dare to buy at the bottom. So their fate is to chase the rally after a surge, only to get trapped at the top. When others are fearful, if you don't dare to buy, then when others are greedy, you won't have any coins to sell to them. :)