Quote from Ndubuisi Ekekwe on June 18, 2021, 11:15 AM

Bitcoin has three main problems - not really anonymous, mining costs too much energy and does not work well as a currency.

Bitcoin, the world’s best known cryptocurrency, has a few flaws — and that’s triggered other digital currencies to come up with more viable options, according to a professor at Cornell University. It isn’t as anonymous as people think it is, and “mining” bitcoin is bad for the environment, pointed out economics professor Eswar Prasad. It also doesn’t work well as a currency, he told CNBC on Thursday.