[plt-scheme] Native code generation and immutable pairs

On Mar 12, 2006, at 11:47 PM, Felix Klock's PLT scheme proxy wrote:

>
> Fast foward to maybe four-fifths of the way through and you'll see  
> Gerry talking philosophy about two pieces of chalk.  (Yes, it comes  
> back to set! and eq? in the end!)

p.s. its four-fifths (or so) of the way through the lecture entitled:  
"Lecture 5a: Assignment, State, and Side-effects"