Here's another example. You can talk all day long about how a TV works to produce colored light that it projects on crystals and yadda yadda yadda, but no matter how much information you gather about how the picture is created and what it may or may not look like from what we know about the internal processes of the TV, you'll never know what's on the screen until you can press the power button and watch. We will never step back and look at the universe from outside of "it," so we will never get the perspective that Langan is trying to imitate.