We optimized for cost by making things packet-switched. The latency for phone calls on copper wires back in the late 90s was great, but I am definitely glad th

We optimized for cost by making things packet-switched. The latency for phone calls on copper wires back in the late 90s was great, but I am definitely glad that a modern video call doesn't require paying, say $3.00/min/person in the way that long distance did back then.