> If the electric telegraph hadn’t been invented, would engineers have continued to optimize the optical telegraph? Isn't that today's Free Space Optical Commu

> If the electric telegraph hadn’t been invented, would engineers have continued to optimize the optical telegraph? Isn't that today's Free Space Optical Communications? Bandwidth is measured in Gigabits per second. https://en.wikipedia.org/wiki/Free-space_optical_communication https://en.wikipedia.org/wiki/Free-space_optical_communicati...