What's your definition of "distributed system" then? Two flipflops interconnected on one wafer. Two flipflops inteconnected on one PCB. Two flipflops interco

What's your definition of "distributed system" then? Two flipflops interconnected on one wafer. Two flipflops inteconnected on one PCB. Two flipflops interconnected with a cable between two PCBs. These are all "distributed". They're all subject e.g. to the CAP theorem. Sure, the probability of one flipflop failing on the same wafer is quite small. The probability of one flipflop failing on one PCB is slightly larger. But fundamentally all these systems are the same. If you have two computers on a network you can make the probability of failure (e.g. of the network) pretty small.