[racket] begin vs +

From: Sam Tobin-Hochstadt <samth at ccs.neu.edu>

> On Mon, Aug 2, 2010 at 9:48 AM, Keiko Nakata <keiko at kurims.kyoto-u.ac.jp> wrote:
> > Or, call/cc does not capture the state?
> 
> `call/cc' does not capture the state of the heap (such as the contents
> of boxes).

Thanks! This makes it very clear.
This should also mean I cannot undo force-ing delay's with call/cc,
since, if I understand correctly, delay's also reside in the heap.

Keiko