On the other hand, I suppose we could all still be watching slides. A night of viewing slides was so torturous, it was cited as inhumane by Amnesty International. Slides didn’t move. They just appeared. One after another after another after another while your host droned on about each of them.

Now, to give slides their due, sometimes the guy showing them didn’t load his projector properly and you’d stare at a blank, rectangular light on the wall. People loved that because it let them make shadow puppets. My favorite was the intertwining of thumbs and waving of fingers, which, when swooped upward and downward looked for all the world like a soaring falcon. It was what passed at the time for special effects.

Then there were home movies. Many of you aren’t old enough to remember those. They were called “super-8,” but I never understood what was so super about them. First of all, they were silent. Second, everybody in them moved quickly, as if their shorts were on fire. Third, they were expensive.

Because film cost so much, home movies were short. Rarely did one last more than about 10 minutes. An hour was an epic. Twenty-seven hours? Inconceivable.

Wait a minute. Hours of video. Ten minutes of film.

Come to think of it, maybe that’s what made super-8s super.