That doesn’t make any sense to me. I would never risk anything someone told me would move my consciousness into another machine since I would have no way to kno

That doesn’t make any sense to me. I would never risk anything someone told me would move my consciousness into another machine since I would have no way to know a priori if the person on the other side would still be me. Ergo I think civilizations probably just take on the precautionary principle and maintain their minimal biological form to ensure a fully linked chain of confidence they will preserve their own consciousness, but that’s the threshold and they virtualize everything else like their incoming qualia.