Which Back to the Future II predictions have become reality?

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Back to the Future II Predictions That Have Become Reality

The film "Back to the Future II," released in 1989, envisioned the year 2015 with numerous futuristic technologies, some of which have indeed materialized, while others remain in development or have not come to pass. While many of the specific gadgets depicted, such as garbage-fuelled flying cars and robot waiters, have not become commonplace, the reality of technological advancement has, in many ways, surpassed the film's imagination, particularly concerning personal communication and information access.
Advancements in Personal Technology and Information Access

The film accurately predicted several key technological advancements, including flat-screen televisions, live video-calling, tablet computers, and portable, up-to-the-minute weather applications. More significantly, the capabilities of smartphones, which grant access to nearly all the world's information, were beyond what futurists could have conceived in 1985. Technologies like Google, Wikipedia, Facebook, Twitter, and GPS navigation, along with online shopping, were difficult to envision at the time of the movie's release, contrasting with the film's portrayal of Marty McFly receiving a dismissal notice via fax, a technology now considered outdated.
Emerging Technologies Inspired by the Film

Several specific predictions from "Back to the Future II" are in various stages of development or have seen early implementations. For instance, companies are actively working on flying cars, though they currently lack the vertical take-off capabilities shown in the movie. Furthermore, a company named Hendo is developing a hoverboard that functions through magnetic repulsion, mirroring the gravity-defying boards seen in the film. Shoemaker Nike is also reportedly working on self-tightening "power laces" for sneakers, a feature worn by Marty's offspring in the movie.
Realized Personal Convenience and Biometric Technology

The film also touched upon technologies that are now readily available, such as biometric identification for tasks like unlocking doors or making payments using a fingerprint. Similarly, smart glasses, reminiscent of those worn by Marty's children, are now commercially available. These developments, alongside the widespread adoption of technologies that allow for downloading music and streaming films—terms that did not exist in 1985—demonstrate how the film's speculative visions have found tangible forms in modern life. The accessibility of home 3-D printers for a few hundred dollars also represents a significant technological leap not explicitly depicted but aligning with the era's rapid innovation.

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Which Back to the Future II predictions have become reality?

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