This sketch from 43 years ago shows kids playing a video game on their "iPad"

I was going through my copy of Stewart Brand's 1974 book, II Cybernetic Frontiers (1974) when I came across this sketch by computer scientist Alan Kay, who conceived of a tablet computer in 1972 called the Dynabook. Although it used a stylus and a keyboard, his 43-year-old sketch of two kids sitting in the grass playing video games on their Dynabooks looks like kids today playing games on their iPads.