Cryptocurrencies have traversed from the periphery of the financial world to the center of global investment discourse in recent years. Among the numerous developments that have contributed to this move, perhaps the most transformative is the launch of the Bitcoin Exchange-Traded Fund (ETF). Although Bitcoin itself has made waves with its decentralization and potential for high returns, the concept of a Bitcoin ETF introduces still another dimension of accessibility and mainstream appeal to investing in cryptocurrency. But what is a Bitcoin ETF, anyway, and why is it considered to be a game-changer for veteran investors as well as curious newcomers alike?