Tell why cryptocurrencies should not be bought during significant market upswings. This market is extremely emotional and magnified; none of the coins have a valuation model. Just like financial assets, stocks essentially have an anchor for their valuation: company cash flow and profitability. Coins do not have this; they are essentially a game of capital. I ask you, do you think a certain coin is worth ten cents or ten dollars? Any price cannot value it; it fundamentally lacks an anchor! The only condition to determine whether it is worth buying is emotion! Soros once said we should use the principle of market reflexivity to make money! The cryptocurrency market is the best market to utilize the principle of reflexivity! Since the cryptocurrency market is a game of capital, choosing coins is relatively simple. As long as a coin can keep up with the overall market during each bull and bear cycle, it can be bought, making it easier than selecting stocks! Controlling market sentiment is the key; the characteristics of a capital game are the properties of explosive growth and sharp declines. This also makes the market full of opportunities. The sharper the decline, the greater the opportunity! When the market is extremely fearful, it is also highly irrational; the same goes for explosive growth. To gain an advantage in this market, you must wait for significant purchases during times of irrational market fear! Use the principle of reflexivity to sell when the market is greedy. If you enter the market to buy when there is a significant price increase, you will definitely not be the advantageous side. At that moment, you become the reflexive side for others, rather than the one utilizing reflexivity! Perhaps occasionally chasing highs will make you profit, but trading is an infinite game! If you keep playing without having a cost advantage, you will definitely be the one giving away money. We must utilize reflexivity, not become someone else's reflexivity.