Bitcoin tumbled below $30,000 on Thursday, as the cryptocurrency continued its 2021 slide after quadrupling in value last year. The digital currency dropped 17% to $29,246.77, wiping out about $100 billion from the market, according to data from CoinDesk. It’s now down more than 30% since peaking at $41,940 earlier this month. The latest plunge, which comes without any clear reason, underscores the volatility of a currency that’s become a popular investment for day traders in recent years even as it still has limited real-world application. Bitcoin rose over 300% in 2020, closing the year right about where it sits ... (full story)