The (Idea) Ether

There is this old imaginary substance in the universe called ether. Nowadays ether is where forgotten ideas go to be snatched up by somebody else.

Back in ancient times, people could not understand or imagine a vacuum. They thought there had to be a medium to transmit the light and heat of the sun. So they figured that ether was the thing. For the ancients, space and indeed the universe was full of ether.

We no longer believe that there is ether in space. Of course, we do have Ethernet and...