History tends to repeat itself, so the obvious question is this: Which dubious technology of today will become the breakthrough of tomorrow? You can find plenty of skeptics dismissing the idea of wearables, always-on computing devices such as the smartwatch or Google Glass. Detractors can point to long list of failures in the wearable computing arena. But who knows? Perhaps our future cybernetic overlords will look back 100 years from now and regard wearables with digital fondness -- the breakthrough that sparked the inevitable robot revolution. Only time will tell.