Bitcoin is a cryptocurrency invented in 2008 by an unknown person using the name Satoshi Nakamoto. As of the end of March 2021, Bitcoin was trading at around $60,000. Some investors and institutions acknowledge the value of Bitcoin. For example, a leaked report from Citibank calls bitcoin the "21^st century gold" and projects it could rocket to $300,000 by December 2021. However, others believe that bitcoin is just another scam and probably the "greatest scam in history."

Based on what you know about Bitcoin, do you think it is valuable? Please elaborate your discussion and fully justify your opinions.