Our reasoning in Section 2 tells the answer to the
puzzle in Kurzweil’s thought lab: “The so-call
‘copy’ of Kurzweil is not a copy of Kurzweil in the
first place!” Kurzweil’s subjective Self cannot be
copied.
Now another question comes up: If the “copy”
by scanning Kurzweil’s brain with reverse
engineering is not the copy of his Self, then what is
missing in reverse engineering? We do not know.
What we know is: the information from scanning the
neurotransmitter, synapses, neural connection and
every other details of the brain of Self is not
sufficient to form Self.
John Searle sensed something wrong with
Kurzweil’s hypothesis of coping himself by reverse
engineering (Searle, 2002), but did not reach the
essential of the dilemma either: the Self of Ray
Kurzweil cannot be copied.
Can a digital robot be someday as intelligent as,
or as spiritual as, a human? This is a long-lasting
contentious issue. Wang reasoned that a copiable
computer cannot have the consciousness of “fear of
death” (Wang, 2013). Our arguments in Section 2
have showed another example of human
consciousness, self-consciousness, which cannot be
realized in a digital computer. Therefore, a digital
computer can never have the full range of human
consciousnesses, and will not have souls that are
based on self-awareness. Digital robots can never be
one of us.
We do not rule out the possibility of having a
man-made machine with self-consciousness
sometime in the future. But a machine with self-
consciousness must be uncopiable in the first place.
Conceptually, all the machines that humans have
developed are copiable because the hardware of a
machine can be copied by reverse engineering, and
the software (programs) can be copied per the
Church-Turing Thesis. We have not developed a
machine which is conceptually uncopiable like Self.
We even do not have an idea on what an uncopiable
machine is like. The “dream” of having a self-aware
humanoid will not come to true soon, even if it will.
Bill Joy once seriously worried about the fate of
human beings when computers surpass humans on
intelligence. “How soon could such an intelligent
robot be built? The coming advances in computing
power seem to make it possible by 2030. And once
an intelligent robot exists, it is only a small step to a
robot species - to an intelligent robot that can make
evolved copies of itself.” He viewed the research on
computer intelligence similar to the research work of
atom bombs in 1940’s, and called for that
“researches leading to the danger should be
relinquished.” (Joy, 2000). His worry can now be
relieved due to the resolution we have derived in
Section 2.
Our arguments in Section 2 give a logical answer
to the issue everyone many have thought of. The
arguments are simple and can be understood by
everyone, which are just based on common sense
and the fundamentals of logic rules. But why has no
one ever logically derived them? People tended to
put their opinions based on beliefs, faiths, and
subjective judgments, and stay there without going
one step further. Some, like John Searle, even
asserted that whether a computer may have human
consciousness is a problem unable to prove or
disprove.
The reasoning addressed in this article is
composed of straightforward deductions that
everyone is able to do but no one did them. Such a
phenomenon is not alone in the history of science.
When Stephen Hawking mentioned the big-bang
theory of universe, he said, “The discovery that the
universe is expanding was one of the great
intellectual revolutions of the twentieth century.
With hindsight, it is easy to wonder why no one had
thought of it before. Newton, and others, should
have realized that a static universe would soon start
to contract under the influence of gravity. … This
behavior of the universe could have been predicted
from Newton’s theory of gravity at any time in the
nineteenth, the eighteenth, or even the late
seventeenth centuries. Yet so strong was the belief in
a static universe that it persisted into the early
twentieth century. Even Einstein, when he
formulated the general theory of relativity in 1915,
was so sure that the universe had to be static that he
modified his theory to make this possible,
introducing a so-called cosmological constant into
his equations.” (Hawking, 1996)
Kurzweil and Minsky recognized that the ‘copy’
of ‘myself’ by reverse engineering was not myself.
But they did not go one step further for some reason
to recognize that the so-called ‘copy’ is not a copy in
the first place. They presumed that all human
consciousnesses, including self-awareness, come
from conceptually copiable neurons, synapses,
molecules and atoms so surely that they would not
cast a doubt on that belief even they had come
across a logical contradiction. They simply bypassed
the logical dilemma.
4 FURTHER RESEARCH
Even though electronic computers will never
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