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This post explores the ever-evolving landscape of web technologies and their compatibility across different browsers and platforms. It examines tools like iwanttouse.com and other resources to determine what web features can be safely used in 2021. The discussion will also include insights from industry experts like Jason and Mathias Bynens regarding JavaScript best practices. Finally, the post proposes the innovative concept of adopting a "quirks mode" but tailored to specific years, which could offer greater control over web development.