What did people dream about before the advent of television? Before movies, comic books and barber shops fully stocked with expired issues of Life magazine?I imagine a caveman ancestor, fresh from the hunt, stomach pleasantly laden with mammoth steaks. As he dreams by the fire, visions of the stone cold prehistoric fox in the next cave dances in his head. Does this sound plausible? Of course it does. However, it is equally likely he would have an uncomfortable dream about running into an ex-girlfriend at the watering pool.ORImagine: it's the bygone era of the Black Plague. A peasant, sleeping fitfully in the garbage, dreams horrific visions of plague-carrying rats and dying, painfully, eventually to be carted off on a wooden cart. Or he finds himself in the middle of the plague, wearing nothing but his breeches. Talk about embarrassing!It is almost certain dreams in the past were less populated with super models and diet sodas, but were they any less bizarre?I feel so very sorry for our ancestors. How would they know what these uncomfortable dreams meant without a definitive podcast to listen to at work?