Back to the Future, Part II predicted some key future technologies.

As a definitive pop-culture source in regards to future progress, Back to the Future II nailed a few futuristic technologies. We don’t have functional flying cars yet, or hover boards that work universally, but we definitely have the video calling, biometric scanners (including door locks shown in the movie) and digital payment via Apple/Android Pay and Square. They were also only a year off on predicting the Cubs winning a world series.