$PI Currently, there are nearly 25,600 types of coins in the entire crypto market, and by 2030, there is a possibility of being broken by quantum attacks, including mainstream tokens like Bitcoin. Almost 99% of existing coins will be eliminated. If Bitcoin's upgrade is unsuccessful, it would be a bad sign for the entire crypto market. Currently, the cost to mine one Bitcoin is around several hundred thousand RMB. If it is breached, the impact on the market would be quite significant. Although PI can withstand quantum attacks, it also depends on future developments. One good thing is that there are many PI nodes; currently, there are 350,000 super nodes and over 1.3 million backup nodes. To breach it, the protocol must be changed, and changing the blockchain protocol requires more than 50% of the nodes to agree for it to be successful, which is also an advantage of PI. The more nodes there are, the smaller the possibility of a breach.