Fault tolerance level is reached all the time. Devices and network solutions fail pretty regularly, all sorts of crazy bugs, both programmatic and hardware based. Not saying the underlying physics IS wrong, but I am sure there is a degree of accuracy which diverges and causes the edge cases. For example my network coverage goes out for no reason. The way the radio waves propagate to the cell tower is inefficient, maybe there’s some hidden science that can do it better. BELIEVE ME I would say impossibility level is like %99.999999 but that doesn’t mean it’s not possible.