I’m an old Lisp enthusiast who has many loves: Scheme with Dylan being my favourite dialect and Racket a close second; Common Lisp as implementations are often quite fast with native compilers such as SBCL; and Shen by Dr Mark Tarver which is a very innovative Lisp including pattern matching (ala ML), opt-in lazy evaluation, static type checking, integrated Prolog language and runs on top of multiple “lisp” implementations (including CLisp, SBCL, Clojure, Scheme, Ruby, Python, JVM and JavaScript) — the only downside seems to be the complicated licence. I highly appreciate the work of early Lisp researchers, particularly the “Lambda Papers” such as Lambda the Ultimate Imperative, … Declarative, … GOTO … Opcode etc, and others on [first-class] continuations, macros, partial evaluation, staging, concurrency and distributed programming (Termite was light years ahead