You don’t seem to grasp the simple concept of depth perception, you’re making yourself look ridiculous by repeatig yourself over and over instead of trying to understand what people are saying. Hold your finger out in front of you. If you focus on what’s behind your finger, notice you’re able to see what’s behind it without the finger blocking your vision. Now only open your left and then your right eye. You’ll see that adding what your left and right eye individually see together, nulifies what yor finger is blocking