It's not a "miracle". Being charged per minute was efficient because you were tying up a cost-time based resource (a phone line). People don't like it because t

It's not a "miracle". Being charged per minute was efficient because you were tying up a cost-time based resource (a phone line). People don't like it because they have to keep track of another dimension of cost, but we still have parallel costs with cell phones and ISP connections (either by usage time or by transfer size-time).