Just finished SICP with Racket

And I'm not convinced about anything other than that Racket is slow as shit in a funnel. Explain this satori thing to me.

>>31
I didn't do many tests on how good the JIT compiler is, but I'm sure that it can determine the type of a variable in certain situations, e.g. (cond ((number? x) ...) #|the compiler knows that x is a number|# ...)
However, it is far from being perfect and from the quality of CL compilers.