One idea in H+ is that a person's consciousness can be digitized to outlive its human body. I think the assumption is that everything that you consciously are is just the emergent configuration of atoms in your brain. The psychological is simultaneously biological. If you can replicate that configuration in digital form, you should be able to exist in a machine.
So based on that assumption - that you're just a configuration of particles - wouldn't it be possible for you to exist in two places at once? If I somehow replicated; very precisely the configuration of particles in your whole body, down to the sub-atomic level, and within the smallest unit of time, wouldn't you then be 'awake' in two places? If not, then obviously SOMETHING got left behind, something that makes you, you.
Can consciousness be measured?
Proposition: 1) The smallest unit of measure for your consciousness is the sub atomic configuration of your brain. 2) The proposed method is a perfect & complete replication of every atom. 3) The replication completed within the smallest unit of time possible. 4) Both of you are within an empty vacuum and all natural forces are applied to both of you evenly. Question: What is your subsequent perspective?