Explain why nested receivers are dyn-incompatible #1822
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It's not true that they're not supported *yet* - fundamentally, it's not possible to downcast the inner pointer (i.e. removing its vtable) while it is stuck inside the outer pointer
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It's not true that they're not supported yet - fundamentally, it's not possible to downcast the inner pointer (i.e. removing its vtable) while it is stuck inside the outer pointer