For my opinion, Bitcoin is one of the biggest cryptocurrency that had been used for past years. Bitcoin’s recent surge was the result of a few catalysts, not least of which was the launch of the first Bitcoin-focused exchange-traded fund in the U.S. The Proshares Bitcoin Strategy ETF (ticker: BITO) began trading Oct. 19, with excitement over the continued mainstreaming of the digital asset driving BTC to an all-time high of $66,930 just a day later. Bitcoin’s invention in 2009 changed money forever and opened the door to blockchain-based, decentralized currencies not issued by any nation. Bitcoin’s first-mover status, its hard limit on a maximum circulation of 21 million BTC and its potential to become a store of value on the balance sheets of corporate America – a future which Tesla Inc. (TSLA) first hinted at with a $1.5 billion Bitcoin purchase announced in February.