Only because the computer it was on already had a tag field in every word. Other implementations of Lisp did similar things though: https://www.snellman.net/blo

Only because the computer it was on already had a tag field in every word. Other implementations of Lisp did similar things though: https://www.snellman.net/blog/archive/2017-09-04-lisp-numbers/ https://www.snellman.net/blog/archive/2017-09-04-lisp-number...