Today I woke up questioning whether a zombie, philosophically speaking, could exist. By 'zombie' I am limiting the discussion to human beings without qualia.
Right now I have determined that philosophical zombies do not roam our world. I think it would take an extreme situation to produce a philosophical zombie.
All qualia, what-it-is-like-to-be-ness, is a collective product of the communication between our nervous system and the rest of the body. I think that plants and bacteria among other things exist without qualia.
For a human to be a zombie, the communication between the central nervous system and the rest of the body would have to be completely destroyed, while the body is still functioning.
Thus even if a person was 1) brainwashed, 2) hypnotised, 3) connected to a brain-computer interface, the person would still have qualia. And so qualia is not synonymous with decision making or control for those who are intoxicated, drugged or confused still have an experience of what it is like to be that person.
The first option on how to create a zombie would be to shut down the central nervous system and mechanically operate the remainder of the body through bots. The lungs, the heart, the kidney and the liver for instance would be controlled not through the brain but through the bots.
I am tempted to say that this option fails because the entity is not self-controlled or even self-automated in the manner that plants or fungi are. The first option is not a zombie, but a robot. The first option is a form of artificial intelligence operating within a human carcass.
The second option on how to create a zombie would be to shut down the central nervous system and operate the remainder of the body through multiple human-engineered viruses. The lungs, heart, kidney, etcetera would be controlled by the virus iself. The difference in this case is that if bots are responsible for the functioning of the body, by definition, the body is mechanical and not alive. But a virus is a half-living phenomenon where it's presence in the hosts body does not diminish or exclude the liveliness of the human itself.
I think if a body is operated by smart-bots, it is a robot (which does not experience qualia); but, if a body is operated by smart-viruses, it is still human (which does not experience qualia).
I am not certain whether such smart viruses could be manufactured. In order to create a functional human being (one that takes in information) as opposed to a human being that simply breathes, circulates blood and respires, it would be difficult, but it is probably possible. One would have to look at mobile species who do not have brains or nervous systems.
If a body is operated by both smart bots and viruses, without a nervous system... I suspect that the body would be a robot if the body dies once the bots are turned off. The same body would be a zombie if the body could survive once the bots are turned off.
If a body is operated by either or both smart bots, viruses or an external machine/ person... as long as the nervous system is fully functional that person, though out of control, is not a zombie. Even when controlled by others, a person with a nervous system would have an experience of what it is like to be that person.
Lastly, neither the robot nor the zombie is conscious. It is not possible to be conscious and not have experience of what it is like to be conscious. It is not possible to have a conscious being without qualia.
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