But the logic is very simple. Buy low and sell high. But the reality is not that easy. When the price of the coin drops again, we should buy it, but we are afraid because we think the price will go down again. Conversely, when the price of a coin has gone up high, we buy it with the belief that this coin will go up again. So it's actually our mental and mindset that we have to change. So that we can be successful in investing and trading.