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.

>>28
Because of the dynamic nature of Lisp, a variable that initially holds an integer value may also be later changed to contain a string or types.
Typed Racket, instead, is statically typed. A variable declared as integer will hold only integer values.