Some years ago, I had a science-fiction idea. What if you could wear a camera and record your entire life? It would be small enough to hang around your neck or clip to your clothes. It would have enough memory and battery power to run all day, and it would record with a high enough resolution that you could “enhance” images to see close-up details.
Of course, this tech now exists. The latest iteration is this neat little Autographer, and in some ways it’s even better than my “invention.”