Tuesday, 21 April 2020

Science fiction or Science?: [3] Automatic knowledge transfer


Series title:    Science fiction or Science ?  Serial No. 3

Article Title:  Automatic knowledge transfer from  one person to another

Source references : The story of Nala & Damayanthi in Mahabharata
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Summary
In this story,   Nala   auto- transfers equestrian knowledge to  king Rituparna &  Rituparna, in turn,  transfers knowledge of playing dice  to Nala.
In modern technical terms this would be called “memory implanting”. This is an active area of research in neuroscience currently, though it is said to be at a very early stage.
The concept  has been used to great effect  in some modern science fiction movies.

Relevant  extracts  regarding the event  as given in source::
 Nala, the son of Virasena was the king of the Nishadas. He was strong, and handsome, and well-versed in the knowledge of horses and possessed of every desirable accomplishment………Under force of  circumstances, Nala loses  all his wealth  in  a game of dice where his opponent used unfair means…….Nala wanders about, is  separated from his wife, his appearance changed and name chaged to Vahuka,  comes to king Rituparna of Ayodhya]
He approached the king, saying "My name is Vahuka. There is no one in this world equal to me in managing steeds……”
Rituparna replied, 'O Vahuka, stay with me! May good happen to thee. Thou wilt  perform all this. I have always particularly desired to be driven fast. Do thou concert such measures that my steeds may become fleet. I appoint thee the superintendent of my stables………”
[On one occasion …] king Rituparna, soothing Vahuka with gentle words, said, 'O Vahuka, thou art well-skilled in training and guiding horses. If it pleases thee, I intend to go to Damayanti's Swayamvara [ in Vidharba]  in course of a single day.”…. Rituparna, with joined hands "O monarch, I bow to thy behest, and I will go to the city of the Vidarbhas in a single day!" Then, at the command of the royal son of Bhangasura, Vahuka went to the stables and began to examine the horses. And repeatedly urged by Rituparna to make haste, Vahuka after much scrutiny and careful deliberation, selected some steeds that were lean-fleshed, yet strong and capable of a long journey and endued with energy and strength of high breed and docility, free from inauspicious marks, with wide nostrils and swelling cheeks, free from faults as regards the ten hairy curls, born in the country of Sindhu, and fleet as the winds. And seeing those horses, the king said somewhat angrily "What is this, that thou wishest to do? Thou shouldst not jest with us. How can these horses of mine, weak in strength and breath, carry us? And how shall we be able to go this long way by help of these?"
Vahuka replied, 'Each of these horses bears one curl on his forehead, two on his temples, four on his sides, four on his chest, and one on his back. Without doubt, these steeds will be able to go to the country of the Vidarbhas. If thou thinkest of choosing others, point them out and I shall yoke them for thee." Rituparna rejoined "O Vahuka, thou art versed in the science of horses and art also skillful in guiding them. Do thou speedily yoke those that thou thinkest to be able."  Thereupon the skillful Nala yoked upon the car four excellent steeds of good breed that were, besides, docile and fleet…….
[Nala handles the chariot and horses superbly making great speed… but they encounter unexpected delays on the way…in one instance the king exhibits extremely unusual skill with numbers….]
 Wherein Vahuka was struck with amazement upon finding the fruits, after calculation, to be what the king had said, he addressed the king, saying "O monarch, this thy power is wonderful. I desire to know the art by which thou hast ascertained all this." At this king, intent upon proceeding speedily, said unto Vahuka. 'Know that I  am proficient at dice besides being versed in numbers." And Vahuka said unto him "Impart unto me this knowledge and take from me my knowledge of horses………. And king Rituparna, having regard to the importance of the act that depended upon Vahuka's good-will, and tempted also by the horse-lore that his charioteer possessed, said, 'So be it.' As solicited by thee, receive this science of dice from me, and, O Vahuka, let my equine science remain with thee in trust.' And saying this, Rituparna imparted unto Nala the science he desired………….
…… Nala replied, "……. This thy horse-lore is in my keeping. If thou wishest, O king, I will make it over to thee." Saying this, Naishadha gave unto Rituparna that science and the latter took it with the ordained rites.
 Rituparna, having obtained the mysteries of equestrian science and having given unto the ruler of the Naishadhas the mysteries of dice, went to his own city,

Current status of memory transfer technology
Advances in neurosciences have given us the clearest picture yet of how memories are formed , stores  and then recalled…..it has come together just in the past few years due to two technical developments--- modern brain scanning and computers…..
What is a memory?
Neuroscientists usually define a singular memory as an engram—a physical change in brain tissue associated with a particular recollection. Recently, brain scans revealed that an engram isn't isolated to one region of the brain and instead manifests as a colorful splattering across the neural tiss
A memory looks more like a web in the brain than a single spot,” says neuroscientist and National Geographic Explorer Steve Ramirez of Boston University. That's because when a memory is created, it includes all the visual, auditory, and tactile inputs that make an experience memorable, and brain cells are encoded from all of those regions.

Implanting memories
·        Researchers at MIT in 2013,  had a breakthrough: They were able to target the cells that make up one engram in a mouse’s brain and then implant a false memory. In their work, mice reacted in fear to a particular stimulus even when they had not been conditioned in advance.
·        Scientist s at Wake forest University and Univ. of Southern California… in 2011 achieved….ability to create an artificial hippocampus  and then insert memories into the brain… they were able to record a memory made by mice ( learning a new task)and store it digitally in a computer… they then injected the mice with a special chemical , making them forget the task..Then they played back  the memory into the same mouse’s brain.. the memory of the task returned…
The researchers stress that their work in mice is foundational, but they  see treatment potential for humans down the road. 
Currently the sense is  that direct transfer of new skills to persons thru memory implants seems technically possible  but it is  atleast a few decades into the future
Office of the chief of Naval operations, USA which sponsored the work saya “…Using implantables to enhance competency  is down the road. It is only a matter of time”
The technology is at primitive stage… many hurdles have to be crossed… But principle is established… it may take decades to refine and to work all the way upto humans….
Some sites



Memory transfer in modern science fiction
Remember that scene from the cult movie The Matrix (1999)?
….. the evil sentinels who guard the Matrix.. have finally cornered Neo… the only one who can lead a defeated humanity to victory against the Machines. It looks like humanity’s last hope is about to be terminated. But previously Neo had had an electrode jacked into the back of his head  that could instantly download  new skills into his brain
'Jujitsu? I'm going to learn Jujitsu?' asks Neo, lying down, as the operator downloads modules of martial arts from digital tapes into the organic neural matter of Neo's brain. From kung-fu to flying a B-21 helicopter - all learning gets downloaded through a neuro-digital connection into the brain from the computer….
In seconds he becomes a karate master able to take down the Sentinels….

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·          Scientist s at Wake forest University and Univ. of Southern California… in 2011 achieved….ability to create an artificial hippocampus  and then insert memories into the brain… they were able to record a memory made by mice ( learning a new task)and store it digitally in a computer… they then injected the mice with a special chemical , making them forget the task..Then they played back  the memory into the same mouse’s brain.. the memory of the task returned…


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