cost of deciding to carry one more call every day for a year was still very close to zero. The cost of deciding to turn on the cable and carry thousands of calls every day for a year began to include maintenance and overhead expenses, but not the capital cost of the equipment. I began to realize that the “cost” of moving data over all of these cables was essentially zero, whether they were fat or narrow. And, with the advent of competition in a formerly monopolized industry, there was nothing keeping prices from falling to cost.
