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Ask HN: Is anyone working on “downloading” knowledge to the brain?

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41–50 of 82 posts

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#41
post #33

Earlier quoted context omitted.

Is it really that good?

Yes. I have concepts in Anki that I will be promoted to repeat again in 4 years and I've had to repeat 4-5 times in the past two years.

Why though? In what circumstances apart from preparing for exams does it makes sense to do this?

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#42

I know it's not exactly what you asked for, but in my experience, spaced repetition is borderline science fiction -- if implemented properly. It's not as instantaneous or cool as The Matrix , but it does feel like magic when you can remember obscure words or concepts years after entering them into a SRS program.

What SRS software do you recommend?

I’ve heard good things about Super Memo but it’s Anki for me. It’s simple, reliable, and gets the job done.

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#43

I know it's not exactly what you asked for, but in my experience, spaced repetition is borderline science fiction -- if implemented properly. It's not as instantaneous or cool as The Matrix , but it does feel like magic when you can remember obscure words or concepts years after entering them into a SRS program.

It's called "studying", which implies a form of "spaced repetition", but makes notions meaningful and "alive" by making them integrated in your "body of knowledge". To do differently - to just keep notions in a mental closet -, would be like memorizing a book: you have not read it. "Reading" - digesting information - and "memorizing" are not the same.

To "study" you will have to use some sort of (often natural, implicit, unplanned) spaced repetition. But you will also process the information with an eye to make it productive (as opposed to "just stored").

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#44
post #35

Not a neurologist, but my hunch is that even if we had perfectly working brain implants, this would be impossible the way they do in the movie - or at least would require lifelong monitoring of your brain structure before it could be done (which, arguably, would be feasible for people spending their life in a tub like in the movies - but infeasible for us) As a start, what "data format" would that downloadable knowle…

I'm not a neurologist too but what if you can do it without brain implants? Something like transmitting data in the form of waves to brain.

What kind of waves would that be? You'd need something to resonate with specific neurons in any case.

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#45
post #4

It seems that no one properly understands how information is stored in the brain. I think that needs to be solved first.

This is a popular thing to say but is too superficial, we obviously have interfaces that operate mechanical arms and other things with a computer interface interpreting signals from the brain and other nerves. We actually know quite a bit about what kind of signals get sent from some parts of our bodies to other parts and these patterns hold within the brain as well. It just gets microscopic and -very- complicated. Check out these books:

Dayan & Abbott theoretical neuroscience (I found a pdf)

Spikes: Exploring the Neural Code

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#46
Think in how the Pentagon and CIA shaped movies into propaganda (https://worldbeyondwar.org/the-pentagon-and-cia-have-shaped-...). Now think how something that puts directly information in your brain, without any critical analysis from the one that receives it. Or just plain old advertising or marketing.

There will be market forces to put there more than just the intended knowledge you want. And probably it won't be so easy to debug or clean as with plain text.

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#47

We have a high bandwidth input already known as eyes and ears

I agree that they are high bandwidth inputs but not all of it sticks. There is a saying that goes: "in one ear and out the other". Recently, I learned about "reticular activating system". As far as I can understand, RAS determines what is important to you and provides your focus there. This is pure speculation but it might be that, eyes/ears are indeed very high-bandwidth inputs that if all their data was persisted, it would overwhelm our brain.

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#49

No, but a philosophical argument that showed how it was impossible would be almost as useful. You can just give someone a magic feather and let them believe they have become something, which is sufficient for many purposes. Remember that in the Matrix story, a world in which they could download skills from the simulation and instantly become things by essentially just imagining them, so long as they stayed within its…

We have actually had muscular electrostimulation devices for quite a long time. I believe they work quite well to get stimulation when injured.

In general though anything I have read says they work well even if not injured. They have just never caught on the way lifting weights has.

Re: Ask HN: Is anyone working on “downloading” knowledge to the brain?

#50
I'm not any kind of neurologist, but intuitively, the ways in which people seem to learn things varies so much from person to person, it seems highly likely to me that there is no universal format in which our brains store knowledge of facts and movement patterns. This bodes rather poorly for ever doing something like downloading knowledge to the brain Matrix style. Even assuming you had a way to "write" whatever neuron structure stored knowledge, you'd have to first carry out a super-detailed analysis to determine exactly how to encode that knowledge in each particular brain. And God only knows what'll happen if you get it wrong.

Probably something that the brain does very early in life, like around infancy, is to figure out for itself a way to store knowledge and learn how to store new things that it learns in that way. If each one makes it all up for itself, then it stands to reason that they're all different in unpredictable ways. The observed fact that people vary widely in overall intelligence, what they're good and bad at learning, and how they learn it, seems to follow naturally from that.

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