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Everything posted by Genady
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Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
Now it is YOU who is stuck in 2023, it seems. ... and other important components. For a simple example, myelin sheath structures control rate of propagation of signals in neurons. Different rates cause differences in arrival times of the signals. This affects the spikes. Etc. Lesser? This is how drugs affect brain. They don't modify neuron connections. The effects are dramatic, though. Paraphrasing YOU just a bit, -
Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
me too -
Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
In the case of quantum computers, it does. -
Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
Neurons and their connections are not the whole story of the brain. Quantum computers are macro, too. They operate on quantum, nevertheless. -
Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
It is definitely more than this. Much more. Quantum Mechanics' laws are. -
Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
In quantum computers, only one impulse travels at a time. It does not make them any "less" quantum. "Quantum" does not mean "fuzzy". It means that elementary units are quantum states, and operations are unitary. -
So, in the near future all movies will be realistically looking computer animations. Aren't they already?
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Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
It is an appealing hypothesis. -
Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
The latter are quantum in nature, and I think that the "calculations" which brain runs are quantum. -
Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
It is not. Quantum mechanics prohibits this. No technology overcomes laws of nature. -
(1) There is a similar thread here: (2) Online it happens all the time. As soon as I touch a topic by reading or writing online, the ads and news related to the topic start flowing onto my screen.
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Here is why the total spin J for the sss baryon cannot be 1/2, AFAIU: The wavefunction for a baryon (a fermion) has to be anti-symmetric. In the ground state, this wavefunction is a product of the wavefunctions for spin * flavor * color. This product has to be anti-symmetric. Since all three quarks are of the same flavor, the flavor wavefunction is symmetric. Thus, the product of the wavefunctions for spin * color has to be anti-symmetric. Next, (Phy489_Lecture9a_2013.ppt (utoronto.ca)) Since the color wavefunction is anti-symmetric, for the product of wavefunctions for spin * color to be anti-symmetric, the wavefunction for spin has to be symmetric. The three 1/2-spin wavefunction is fully symmetric only in the case of all three spins being the same, i.e., J=3/2. It is not fully symmetric if one spin is different from the other two, i.e., if J=1/2. QED
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Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
If you don't record all the necessary information, you cannot restore the original state. I claim that it is in principle impossible to collect all the necessary information. This makes your case implausible. -
I guess that the OP question is answered. As a personal OT note I wanted to mention that I don't have a positive vibe regarding Y. Ne'eman because he is rather familiar to me as a right-wing politician that he was when I lived in Israel.
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Yes, this is it. Any particle with a spin number s has 2s+1 possible spin values.
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IIUC, the spin quantum number of the particle is 3/2, which means that the z-component of the spin has 4 possible values, i.e., -3/2, -1/2, 1/2, and 3/2.
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Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
@Bob Cross, Just to clarify my comment above. I meant to say in the first statement, "How do you know that the entire mind contents are recorded in the spatial locations of the neurons?". -
With a tiny little exception of sign language. (But it is not English. OT.)
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Postulating a Basis for Belief in a Technological Afterlife
Genady replied to Bob Cross's topic in General Philosophy
How do you know that the mind contents are recorded in the spatial locations of the neurons? I bet they are not. The neurotransmitter concentrations, release, absorption, and other molecular level mechanisms inside and outside of neurons are crucial as well. Moreover, how do you know that brain is not a quantum rather than classical computer? If it is, it is impossible in principle to record its state without destroying it. -
Perhaps it is so. I have a kind of screen in my mind, where a written text continually runs, and I read from it when I speak. So, I often make pronunciation mistakes.
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Isn't a concept the trigger for generating both the sound and the motor pattern of the word, among many other related aspects, such as visual images, emotions, memories, etc. ?
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To me, 'their' goes with 'they' while 'there' goes with 'here'. I didn't consider it a big challenge, I saw it rather as learning two very closely related sets of words: one, how to say it, another, how to spell it. Maybe it is in fact easier to ESL learners, as we learn speech and writing at the same time, while native speakers speak first and learn writing as an extension later.
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only native English speakers. Still ? I'm not sure how computer skills play into it.