My teenage son asked me the other day what "grunge" and "goth" were. I was then trying to explain "subculture" and "counterculture", and it was surprisingly difficult to explain.. or convey, especially in the context of what he's seen so far in his life. I tried using examples of my own youthful adventures and communities -- still not easy.
Try explaining next that computing and gaming used to be subcultures/countercultures. I remember how Mortal Kombat and DOOM were going to cause the fall of civilization.
redisman, could you tell more about this?