reentry

Itroduced by [[George Spencer-Brown]] in [[Laws of Form]], chapter 11. Influnced the work of [[Heinz von Foerster]], [[Humberto Maturana]], [[Francisco Varela]], [[Louis Kauffman]], [[William Bricken]], [[Niklas Luhmann]], and [[Dirk Baecker]].

• [[kvistgaard]] https://twitter.com/kvistgaard/status/1509430851389607936 pull
• [[kvistgaard]] https://twitter.com/kvistgaard/status/1509437723353964546 pull