Days spent looking at digital displays

As we approach the date much of the talk has been about whether the movie predicted things that came to pass. But the main thing I remember from the film is the digital clock. The one that Marty McFly used to measure the speed in order to get to 88 miles per hour so that “something something flux capacitor something something time-travel.”
As anyone who has ever tried to overtake while driving a Micra will understand, getting the car to achieve this speed was part of the tension of the films.