That is not possible or desirable. Scheme-specific constructions are woven throughout the text -- tail calls, closures, and more.
And the main value of SICP, at least for its fans, is the pedagogic value of the language. It starts off with pure functional programming and then introduces assignment much later, and discusses its tradeoffs.
And the main value of SICP, at least for its fans, is the pedagogic value of the language. It starts off with pure functional programming and then introduces assignment much later, and discusses its tradeoffs.