You likely won't get an answer from someone making hyperbolic claims like that. But it's probably this discussion - https://internals.rust-lang.org/t/unsoundnes

You likely won't get an answer from someone making hyperbolic claims like that. But it's probably this discussion - https://internals.rust-lang.org/t/unsoundness-in-pin/11311/42 https://internals.rust-lang.org/t/unsoundness-in-pin/11311/4...