The most significant recent event for Bitcoin is the full-scale outbreak of the US-Iran conflict, which directly caused a 3.57% crash within one hour on the afternoon of February 28, with the lowest touching $63,935. At the same time, the market experienced approximately $1.8 billion in selling pressure. This is the biggest bearish factor recently, as funds preferred to sell cryptocurrencies due to risk aversion, leading to significant price fluctuations.