Analysis of information sources in references of the Wikipedia article "Lisp (programming language)" in English language version.
Clojure is a Lisp not constrained by backwards compatibility
I didn't understand the monster LISP idea of tangible metalanguage then, but got kind of close with ideas about extensible languages ... The second phase of this was to finally understand LISP and then using this understanding to make much nicer and smaller and more powerful and more late bound understructures ... OOP to me means only messaging, local retention and protection and hiding of state-process, and extreme late-binding of all things. It can be done in Smalltalk and in LISP. There are possibly other systems in which this is possible, but I'm not aware of them.
The PDP-6 project started in early 1963, as a 24-bit machine. It grew to 36 bits for LISP, a design goal.
Lisp is a survivor, having been in use for about a quarter of a century. Among the active programming languages only Fortran has had a longer life.
I invented conditional expressions in connection with a set of chess legal move routines I wrote in FORTRAN for the IBM 704 at M.I.T. during 1957–58 ... A paper defining conditional expressions and proposing their use in Algol was sent to the Communications of the ACM but was arbitrarily demoted to a letter to the editor, because it was very short.
Lisp is a survivor, having been in use for about a quarter of a century. Among the active programming languages only Fortran has had a longer life.
