The Opportunity Cost browser extension converts all prices displayed on websites into Bitcoin (BTC) and Satoshis, the smallest unit of Bitcoin. Created by Marty Bent, it aims to accelerate Bitcoin adoption by helping users visualize transactions in cryptocurrency and understanding the opportunity cost of their purchases. For example, viewing a Ninja blender priced at 84,182 sats or a luxury apartment at 560 BTC prompts users to reconsider spending habits. Launched on Chrome and Brave, with plans for Firefox compatibility, it quickly gained attention from crypto enthusiasts who began sharing their experiences. Bent emphasizes the need for a tool that makes Bitcoin relatable and comprehensible to a broader audience, particularly to those unfamiliar with cryptocurrency. He argues that viewing prices in Bitcoin rather than fiat currency encourages users to question their spending and fosters a deeper understanding of Bitcoin's value relative to inflationary currencies. The extension underscores the notion that Bitcoin is a superior form of money, rejecting stablecoins tied to fiat, as they are intrinsically unstable. This initiative not only serves as an educational tool but also aims to reduce reckless consumerism by compelling users to evaluate whether they would rather spend Bitcoin on products or save it instead.

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