The internet is causing the world to shrink
I was reading up on the history of communication here and had to pause at how quickly things are changing. From the invention of written communication (3500BC) until the invention of the optical semaphore (1793), instantaneous and lossless long distance communication has been limited to how far you can shout/see. The rate of communication outside that range was limited to a max of about 200miles per day (speed of a horseback rider). This means, that for 5000 years it would take 1.5 days to send a message from Rome to Milan. Starting in 1793, this rate began to accelerate as a visual semaphore could drop that time significantly, but there was a huge amount of infrastructure to get this working. You needed towers, telescopes, and other things to make things work. In the space of 40 years, the electric telegraph greatly lowered the cost of long distance near light speed communication. For remainder of the 19th century, wired telegraph and eventually wireless telegraph lower the ...