The New York Times yesterday ("2022-05-24T21:54:19.000Z")
on a Saturday, May 21, death —
"Colin Cantwell, an animator, conceptual artist and computer expert
who played significant production roles in seminal science fiction films
like '2001: A Space Odyssey,' 'Star Wars' and 'WarGames,' died
on May 21 at his home in Colorado Springs, Colo. He was 90."
Cantwell at Teotihuacan pyramid, September 26, 2019 —
A different image, also from September 26, 2019,
in other Log24 posts tagged Pyramid Game —
The letter labels, but not the tetrahedron, are from Whitehead’s
The Axioms of Projective Geometry (Cambridge U. Press, 1906),
page 13.