Repetitive stress tests are part of physical product testing. Just like slamming butts in chairs or opening and closing car doors, the tests are designed to simulate years of wear in a day or so.

This Galaxy Fold test just opens and closes the Galaxy Fold, over and over. It gives you a nice up close view of the outside of the hinge, as well as a slightly backed out view of the screen seam.

As you watch this, think about this question: Would Apple ever ship this product? If not, why?