The New Scientist’s Feedback page gives a slightly humourous look at the science world.  This is what they have to say about digital TV:

The UK’s last analogue TV transmitter, in Northern Ireland, is to be turned off on 24 October, rendering a whole range of metaphors outmoded. Tim points to the opening sentence of William Gibson’s Neuromancer: “The sky above the port was the colour of a television, tuned to a dead channel.” Once a cloudy grey, that will now be deep blue.

It made me wonder, what other metaphors are there which won’t make sense in the future?

My husband’s favourite example is from Homer, who refers to the sea as “wine-dark” and the sky “bronze”.  This, it is theorised, has something to do with ancient Greeks having a slightly different colour perception, rather than differences in technology, but the principle is the same.  Once a common perception, it now makes no sense.

Can you think of any metaphors or other phrases which won’t make sense once technology (or human evolution) progresses further?