Oh, I've seen them being about widespread television (somehow the articles lasted into the 80's), reality shows, fast-paced news, videogames, RPG, game books, the internet, web chatting (somehow they missed ICQ et al.), orkut, MMO-RPGs, online games (Facebook style), smartphones, modern social networks...
Oh, and there are the always-green ones about calculators, and encyclopedias (that changed into wikipedia). Of course there is the famous one from ancient Greece about writing... So, yeah, consider the population dumbed down already.