$BTC What's going on with Bitcoin? It's back to my cost basis, and there haven't been any major bearish news directly. It's been falling all day on its own, without any sudden plunge or long wick. What's going on? I don't dare go all in and buy the dip, so I can only invest in batches.#加密美股齐跌，下轮反弹的驱动力在哪？