For thousand years, physical tokens have been used as means of payment, where a direct exchange of sellers’ goods and buyers’ tokens allows them to achieve an immediate and final settlement. Nonetheless, this option was not possible when the two parties are not present in the same location (e.g. e-commerce), necessitating the usage of digital tokens. Alternatively, in a digital currency system, cryptocurrency, the means of payment is simply a string of bits.
Bitcoin Will It Burst