@shadowfactsOther Zathras this is more like "it unlocks a thousand runtime usecases" and "I'm sorta hoping LLVM devirtualizes a bunch of shit, but even if it doesn't, the perf hit is worth it for me"
@shadowfactsOther Zathras anyway if you're curious the underlying trick is https://lib.rs/crates/spez (see facet-spez)
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