Is it possible to store an unrealized lazy-seq in a re-frame database?

Yes.

Good to know. Thanks. Then it must be code I have somewhere that is realizing the whole damn thing. 😕

Just a wild guess - do you have any event tracers, maybe re-frame-10x?

kee-frame also does some tracing, from what I can recall.

Hm. I have the debug interceptor in a couple events.

Oh. What about spec validation? That would do it, yeah?

Surely that's it. I'm checking that the lazy seq is a collection of things that have certain keys. Of course.