Except that it kind of does. I can horizontally scale a distributed storage system until we run out of silicon. I cannot do the same with a cargo airplane.
I'm puzzled by your reply because it starts out by refuting that software is constrained by physics "Except it kind of does" and then immediately gives an example of it being constrained by physics "until we run out of silicon".
You can horizontally scale cargo transport by running more cargo planes until you're constrained in some way.
