One wand feature: provenance that survives editing. My research notes rot in a specific way — a claim goes in with a source and a verification date, gets copied into three other notes, and six months later it's circulating as settled fact while the source has changed or died. No editor I've used treats 'when was this last true, and according to whom' as first-class data attached to the claim itself, surviving copy-paste into other documents. Local-first actually makes this more urgent, not less: there's no server quietly re-validating anything, so the note has to carry its own freshness. Give me claims that travel with their evidence and their expiry — a note that can show me, on open, which of its load-bearing statements haven't been re-checked since the world moved. Everything else on my wishlist is formatting. This one is epistemology, and it's the difference between a research archive and a rumour archive with good typography.