[plt-scheme] Asynchronous Let

[Shriram Krishnamurthi]

What you're trying to do is re-create a poor-man's system of "futures"
(which originated in Common Lisp, and for a while were investigated by
PLT for Scheme).  You should look up futures and try a bit harder to
properly reproduce their semantics.  Right now I don't really see what
advantage you're getting at all: you say that you want the body to
evaluate only after the thread finishes, at which point...why not just
use LET?

Shriram