Promises are cool. Here's how they're described in the the classic book "Structure and Interpretation of Computer Programs" (SICP), first published in 1985: ht

Promises are cool. Here's how they're described in the the classic book "Structure and Interpretation of Computer Programs" (SICP), first published in 1985: https://mitpress.mit.edu/sicp/full-text/sicp/book/node70.html https://mitpress.mit.edu/sicp/full-text/sicp/book/node70.htm... If you read this book, you'll soon start to see a lot of the concepts its presents manifested in many places. And a lot of those come from well before the book itself was published, in some cases by decades (Lisp and Lambda calculus for example).