Bitcoin and other cryptocurrencies crashed over 20 percent Saturday. Bitcoin, the largest cryptocurrency by market cap, was trading at $48,000, down nearly 15 percent at 20:40. The coin had plunged by $10,000 to $42,000 within an hour, early on Saturday. The prices then bounced slightly. While volatility in equity market could have caused this crash, could it have been exacerbated by the weekend effect -- Bitcoin's weird relationship with weekends?