KAMLOOPS — Medieval scientists believed that radio waves were carried through a medium they called the aether. Seems sensible. If sound waves require a medium, why not radio waves?
It turns out that radio doesn’t need a medium; a vacuum will do nicely.
The internet is the new aether. The “network of networks” depends on wires and optical fibers to carry signals. The internet wouldn’t exist without it (Wifi is radio but it’s just a connection to the internet).