Page from "A Light in the Attic" by Shel Silverstein. At the bottom is a drawing of a kind put a piece of paper into a machine with gears and buttons. Above that is the following poem: The Homework Machine, oh the Homework Machine, Most perfect contraption that’s ever been seen. Just put in your homework, then drop in a dime, Snap on the switch, and in ten seconds time, You homework comes out, quick and clean as can be. Here it is – “nine plus four?” and the answer is “three”. Three? Oh me … I guess it’s not as perfect As I thought it would be.
Very weird that the answer to "which #scifi author predicted 21st century technology best" might be Shel Silverstein...