Keeping pace

Sometimes, it seems, the times change so fast that language has a tough time keeping up.

For example, I see that marketers are starting to use the phrase "This is not your grandfather's X" for values of X that did not exist in any form whatsoever as little as fifteen years ago.

I imagine it's only a matter of time before "your grandfather's X" refers to anything six months or more out of date.

*sigh*