The universe underneath the pie is mostly made up of invariant laws that must be followed. The OS, libraries, web browser, runtime, and JavaScript framework un

The universe underneath the pie is mostly made up of invariant laws that must be followed. The OS, libraries, web browser, runtime, and JavaScript framework underneath your website are absolutely riddled with bugs, and knowing how to identify and fix them makes you a better engineer. Many junior developers get hung up on the assumption that the function they're calling is perfect, and are incapable of investigating whether that's the truth. This is true of many of the shoulders-of-giants we're standing on, including the stack beneath python, rust, whatever...