Key points related to cryptocurrencies before 2021 were: 1. Bitcoin's Dominance: Bitcoin remained the most well-known and valuable cryptocurrency, often referred to as digital gold. Its price fluctuations, institutional adoption, and potential as a store of value drew considerable interest. 2. Altcoins and ICOs: Besides Bitcoin, there were thousands of other cryptocurrencies, often referred to as "altcoins." Some of these altcoins gained attention due to their unique features and potential applications. Initial Coin Offerings (ICOs) were also a hot topic before 2021, raising funds for new cryptocurrency projects. 3. Mainstream Adoption: Several major companies, financial institutions, and even governments showed interest in cryptocurrencies. Some corporations started accepting cryptocurrencies as a form of payment, and institutional investors began exploring Bitcoin and other digital assets as an investment option. 4. Regulatory Environment: The regulatory landscape for c...