Guessing the future has probably occupied people since the beginning of time. Yet, ponder as we might, reality seldom turns out very close to our predictions. Some things change much more slowly than expected, while others change in ways we couldn't have imagined.
Some of our fancied futures are bright, and some are not. In his cautionary tale "Nineteen Eighty-Four," George Orwell, writing from the vantage point of 1948, speculated on a sinister time in which hapless citizens were under the complete control of an omniscient government. What a relief, then, that the most notable thing 1984 actually brought was the Macintosh computer.