We envision a future where spindly robotic legs shudder under the weight of our grossly obese frames -- but maybe we've seen Wall-E too many times.

ENGADGET: Honda introduces new walking assist machine, doubles as bionic wedgie maker

One of the primary entertainment trends of recent years -- and one with legs into the future -- can also be traced back 50 years.

CNN: 2012: Predicting the future, with hindsight