Bitcoin charged to a record high on Wednesday, a day after the cryptocurrency vaulted the $50,000 hurdle, even as analysts warned about the sustainability of such prices amid elevated volatility. The world’s biggest digital currency, which has a market capitalisation of over $900 billion, hit a record $51,721 price, fuelled by signs that it is winning acceptance among mainstream investors and companies, such as Tesla , Mastercard and BNY Mellon .
