The fixed supply of Bitcoin is set at 21 million, which contributes to its value and scarcity. Currently, over 19 million bitcoins are in circulation. This scarcity makes Bitcoin similar to gold, in contrast to fiat currencies that can be printed endlessly. This characteristic is vital for investors as the limited supply can affect prices and market dynamics. Understanding Bitcoin’s cap and its implications can provide investors with a strategic edge in the volatile crypto market, enhancing their financial literacy in the realm of digital currencies.