Decision trees within a molecular Memristo

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John Clark

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Sep 2, 2021, 8:13:05 AM9/2/21
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A Memristor is one of 4 fundamental electrical devices, the other 3 are Resistors, Capacitors, and Inductors, 

A Resistor links current and voltage 
A Capacitor links charge and voltage 
A Inductor links magnetic flux and current 

As far back as 1971 it was hypothesized that there must be a fourth type, called a "Memristor" , that links magnetic flux and charge, but at the time nobody knew of a substance that behaved that way. About 10 years ago it was found that compounds made of rare elements, such as niobium dioxide and vanadium dioxide, did behave like Memristors, but they were not practical devices because they are very expensive and broke down after only a small amount of use. But in yesterday's issue of the journal Nature researchers report they have found that an iron atom bound to a simple organic molecule is a cheap dependable Memristor, and they have even used that substance to make a nanoscale Microchip that can process information.

It's conceivable Memristors could totally supplant transistors because not only can they switch from a conductive to an insulating state faster than a transistor they can do so by using much less energy, and unlike transistors, they can remember their previous state and act as a sort of synthetic neuron.  The researchers were able to alter the logical layout of their chip simply by changing the voltage they applied to it. A  Memristor can even perform some types of analog information processing. The researchers said it would take thousands of transistors to perform the same computational functions as just one of their molecular scale Memristors, so they will probably first find applications where power is limited, such as in handheld devices and sensors.

John K Clark

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Sep 4, 2021, 2:38:39 PM9/4/21
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I have sort of noticed this as a development in computing where QC's haven't made it out of the lab, except if you consider DWave's entanglements as substantial successful operations. Yeah Dwave does thousands of qubits, but not many end up as successful ops. My point was I am surprised how fertile the regular digital computing is, surpassing itself beyond expectations. 
This is not to detract from massive QC advances, but to just stay respectful of what we can achieve without having to chill things down. 
In any case, for QC:



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John Clark

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Sep 4, 2021, 3:04:45 PM9/4/21
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On Sat, Sep 4, 2021 at 2:38 PM <spudb...@aol.com> wrote

> I have sort of noticed this as a development in computing where QC's haven't made it out of the lab,

Actually this is something different, this computer development has nothing to do with quantum computers, but a Memristor can  sort of act like a neuron in a brain, but then biological brains don't make use of quantum mechanical principles either. 

John K Clark    See what's on my new list at  Extropolis
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spudb...@aol.com

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Sep 4, 2021, 3:13:47 PM9/4/21
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Oh, I got that, I was simply looking at the advances in digital computing, via the delayed rewards of the quantum. Quantum is exciting but it is akin to Linus waiting for The Great Pumpkin, in the pumpkin patch. 


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From: John Clark <johnk...@gmail.com>
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spudb...@aol.com

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Sep 4, 2021, 3:29:43 PM9/4/21
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To be honest this reminds me of the fight between Hameroff v Tegmark 15 years ago, where Hameroff and Penrose saw the quantum of the central feature of the way brains worked, and Tegmark called BS because quantum actions only worked in super cold environments. 

The truth was, yes microtubules function only well above freezing but yes, its not quantum computing, but brains do use QFT as nearly everything we see is involved even on a microscopic scale with quantum field effects. You, me, the bird crap on the sidewalk, etc. Ad Nauseum. 

Memristors good, Spintronics yummy, Tissue engineering & replacement via 3d printing, bring it on, replacement energy systems? We been waiting decades. I am a values kind of guy. 



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John Clark

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Sep 4, 2021, 3:54:34 PM9/4/21
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On Sat, Sep 4, 2021 at 3:29 PM <spudb...@aol.com> wrote:

> its not quantum computing, but brains do use QFT as nearly everything we see is involved even on a microscopic scale with quantum field effects.

Well yeah, quantum mechanics is behind everything, even a diesel engine, but you can build and repair one even if you knew nothing about quantum mechanics, and you can program a conventional computer, even one made with Memristors without making use of weird quantum principles, but that is not the case with a real quantum computer. To program a quantum computer you'd have to know some quantum mechanics. And D waves-device is a special purpose machine used to solve optimization problems, it makes use of some quantum principles but it's not a general purpose computer because it's not Turing complete,  
 
John K Clark    See what's on my new list at  Extropolis

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Brent Meeker

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Sep 4, 2021, 5:04:20 PM9/4/21
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My late friend Vic Stenger's comment on this was, "You have just as many microtubles in the cells in your balls as in the cells in your brain."

Brent
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spudb...@aol.com

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Sep 4, 2021, 10:24:45 PM9/4/21
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On the advance of the computer realm outside of the quantum, we have constant successful innovations as well. Evidence?

My take is unless we can section off the universe from quantum effects its everywhere and thus an underlying and unappreciated by most people. I would say that until we can exclude this factor via scientific measure, we also must run on QFT. Advances will continue in QC, I am just surprised and pleased that the digital continues along with the quantum. Of course photonics are quantum, so maybe we are down to jargon? 

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Sent: Sat, Sep 4, 2021 3:53 pm
Subject: Re: Decision trees within a molecular Memristo

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