Here's why China's crackdown on crypto mining could be good for bitcoin

Bitcoin continued its volatile streak on Tuesday, starting the day with a tumble below the key $30,000 level and then a rally completely back into positive territory. It briefly turned negative for 2021 at one point Tuesday before recovering. Technical analysts had been watching the $30,000 level as a key support level on the charts after the cryptocurrency had fallen to near that low during its May crash.