Satoshi Nakamoto introduced bitcoin in 2009. People identified seven key features of bitcoin since it came into view.
A year later, the fourth concept revealed that crypto is perfect for paying for goods and services on darknet due to anonymity and confidentiality (but soon it went back down). After a year, in 2011, a new idea emerged: bitcoin was also a programmable common database (the blockchain can store arbitrary data, not just transactions). In 2012, BTC was as crypto industry’s reserve currency.
Finally, in 2014 the seventh concept became popular according to which bitcoin is a financial asset whose price does not depend on the price of other assets, currencies, commodities (which, of course, made it attractive for the portfolio diversification).