The "cameras" will never be good enough because the eyeball isn't a camera and has way more info to work with than just a 2D array of colors. For example, your

The "cameras" will never be good enough because the eyeball isn't a camera and has way more info to work with than just a 2D array of colors. For example, your brain has way better depth info than just parallax in most cases, as it gets info about what is required to keep a distant object in focus and aligned in both eyes. These two values will not ever available to fixed cameras and yet provide direct measurements of distance for your brain.