Bitcoin hôm nay giảm còn 6.685,14$, giảm 3,11% so với 24h trước. Liệu đây có phải là thời điểm tốt để mua vào? Nghi Lê 6 năm trước LONDON, ENGLAND - OCTOBER 23: A visual representation of the digital Cryptocurrency, Bitcoin on October 23, 2017 in London, England. Cryptocurrencies including Bitcoin, Ethereum, and Lightcoin have seen unprecedented growth in 2017, despite remaining extremely volatile. While digital currencies across the board have divided opinion between financial institutions, and now have a market cap of around 175 Billion USD, the crypto sector coninues to grow, as it sees wider mainstreem adoption. (Photo by Dan Kitwood/Getty Images)