Back To The Future

One of my most endearing memories from childhood are scenes from weekday afternoon reruns of old movie serials (which predate me by a bit) like Radar Men From the Moon where people flew around with rocket powered backpacks. Ignoring burning issues like "Why don't they set their pants on fire?" and other philosophical questions, this prediction for the future, like many others, failed to come true. Time magazine takes a look at some of these forecasts. Anyone know where I can get replacement batteries for my crystal ball?