Fiber optic cables are not fragile. The crush resistance testing of a fiber optic cable.
How much force can our cables withstand without losing signal? The fiber optics HDMI2.0 cable was tested to endure just over 450 kgf which translates to approximately 6400 psi or 44130 kPa.
How does that compare to the force exerted by everyday objects? Take a look at some examples below.
With the ability to withstand ~6400 psi you can run over our cables with the heaviest car you can find and your videos will still look perfect. In fact, you can even try a tank if you can get your hands on one. Oddly enough a tank exerts less pressure on the ground compared to a regular passenger car because of the relatively large area of the treads of a tank compared to that of four wheels on a car.