If you cloned a human being, atom for atom, you would almost certainly find that you've created a new entity, with its own consciousness, and memory of having been previously conscious. Assuming the clone hadn't been informed otherwise, it would believe it has existed and been conscious since birth.
If the above is correct, could we therefore come to the conclusion that when consciousness resumes after an interruption (sleep, etc), a new consciousness is formed which also suffers under the illusion of having existed since birth.
Assuming this is all true, would there be any point in mind-uploading, where you could theoretically upload the contents and consciousness of a human to a machine (or gradually replace individual neurons until there is no biological matter)? What would be the distinction between this, and simply making an atomic clone as described above, as both entities would ultimately be under the same illusion of consciousness?
To frame the question in another way, should anyone interested in an indefinite or infinite life-span be interested in mind-uploading? Can it be of any use to the current "you"?