@mflatt Is there a reason that (eq? (hash) (hash)) is false? We discovered in pycket that this seems to be important, in particular that the syntax object serialization depends on it.

I regret not making (hash) produce a constant in the first place. But the original choice way to be consistent with operations like cons, which guarantee a fresh value on every call. As you’ve noticed, uses easily depend on the choice, so it’s difficult to change.