+Metacircular Evaluator
+======================
+
+Of course, one of the things you can do in Scheme (or of course any programming
+language, this is the fundamental thing) is implement an interpreter for
+another programming language. The examples directory in this repository
+contains a verbatim copy of the source for the "metacircular" scheme interpreter
+from SICP. To load it, use the following command:
+
+ > (load "../examples/metacirc.scm")
+ ; ok
+
+Be prepared to wait a couple of minutes. When the interpreter finally loads, enter
+the following command to run it:
+
+ > (driver-loop)
+
+You'll then be greeted by the following prompt:
+
+ ;; M-Eval input:
+
+At this point you can start entering Scheme commands... but be prepared to wait
+a while for each result. After all, when evaluating commands in the MCE you are
+running a program in a Scheme interpreter running inside another Scheme
+interpreter which is itself running on a Forth system that is implemented atop
+a virtual register machine running in the Julia numerical computing
+environment. **That's four levels of abstraction more than a native Julia
+program experiences**, so some delay is to be expected!
+
+For instance, the following example from SICP defines and demonstrates a
+recursive list append procedure:
+
+ (define (append x y)
+ (if (null? x)
+ y
+ (cons (car x)
+ (append (cdr x) y))))
+
+ ;;; M-Eval value:
+ ok
+
+ ;;; M-Eval input:
+ (append '(a b c) '(d e f))
+
+ ;;; M-Eval value:
+ (a b c d e f)
+
+You may have to wait a minute or so for the final result to be printed.
+