Video: "Where Good Ideas Come From", By Steven Johnson
https://www.youtube.com/watch?v=NugRZGDbPFU
"Chance favors the connected mind".
Video: "The Playful Wonderland Behind Great Inventions", By Steven Johnson
https://www.youtube.com/watch?v=hLltkC-G5dY
"The future is where the fun is".
Video: "The Hummingbird Effect", By Steven Johnson
https://www.youtube.com/watch?v=_TEKYZfcI_c
Article: "Who Invented the Wheel? And How Did They Do It?", By Cody Cassidy, WIRED, 5/6/2020
https://www.wired.com/story/who-invented-wheel-how-did-they-do-it/
Article: "Mesoamerican Wheeled Toys", By Robin Heyworth, Uncovered History, 5/9/2014
https://uncoveredhistory.com/mesoamerica/wheeled-toys/
Exhibit: "Fashion and Virtue", the Metropolitan Museum of Art
https://www.metmuseum.org/art/collection/search/372747