I don't understand why the author of the article believes that it's impossible to clone consciousness. If you made an exact copy of yourself, then you would be

I don't understand why the author of the article believes that it's impossible to clone consciousness. If you made an exact copy of yourself, then you would be able to control both bodies simultaneously and you would also receive sensory feedback from both bodies at the same time. The main caveat is that these sensory experiences will be partitioned across the two bodies - You (your consciousness) will receive sensory information from both bodies simultaneously but you won't be able to synchronize that information across the partition (unless you made both of your bodies talk to each other). Just imagine that all creatures on earth were born with only half a body split down the middle; one eye, one ear, one nostril, one arm, etc... As (half) a human, you would probably think that two half-bodies sharing a single mind is impossible... Maybe, as (full) humans, when we think about two bodies sharing a single mind, we also fall into the same psychological trap. It's true that comparing two half-bodies vs two full-bodies isn't a perfect comparison because in real life, the right and left halves of our brains are connected and do exchange some information... But studies show that some people have been able to live with only half a brain (or half of the brain severely damaged) - Both hemispheres do experience a certain level of isolation (partition) from each other; so a lot of the information is not actually shared across both hemispheres and yet you still experience it. So this does lend some credence to the notion that a single consciousness (or at least a part of that single consciousness) CAN exist across a physical partition. So the two-body scenario is just a slightly more extreme version of the two-halves scenario which we all subjectively experience on a daily basis.