In the ups and downs of cryptocurrencies, Bitcoin hovered at $90,000 in early 2025, like a boulder thrown into a calm lake, stirring up layers of ripples, and making the entire currency circle fall into an unprecedented situation of turmoil and expectation. Looking back on the past, Bitcoin has experienced a period of slump, and imitation coins have fallen all the way under its shadow. The endless decline has made many investors confused and anxious. In particular, new investors, as if they w...