eq and hashing (was Re: [plt-scheme] How to make unit functors?)

----- Original Message ----- 
From: "Robby Findler" <robby at cs.uchicago.edu>

> And yes, the real problem is that symbols can be gc'd -- technically,
> the problem is that I can observe that symbols are gc'd and re-created
> as non-eq things.

I'd like to re-characterize this.  The real problem is that you can see a
visible
effect of interning, to wit, the `allocation' of a hash code.

Wouldn't it suffice to make symbol hashing insensitive to their physical
address?