The discovery that changed how scientists think about memory (ibm.com)
105 points by rbanffy 3 days ago
gibsonf1 an hour ago
This discovery fully validates the organic system side of Peter Putnam's theory on induction, the Neuro Conditioned Reflex Principle, that requires changing state at synapses over time to select the nested Relative Dominance feedback winner in a given Conditioned Reflex feedback loop. Its quite incredible that the functionality of induction proposed by Putnam in 1963 has been consistently validated since then. [1]
[1] https://www.peterputnam.org/outline-of-a-functional-model-of...
bambax 10 hours ago
> Every memory begins with tiny changes inside the brain
Maybe. But the brain is not the only place where memory is stored. Flat worms remember things (and skills!) after their head has been cut off and they regrew it:
https://www.smithsonianmag.com/science-nature/these-decapita...
abc123abc123 7 hours ago
"Every memory begins with tiny changes inside the brain. A discovery that helped explain those changes has earned neuroscientist Oswald Steward one of science’s highest honors.
Steward received the 2026 Kavli Prize in Neuroscience, a USD 1 million award and one of science’s most prestigious awards, for research that transformed scientists’ understanding of how the brain learns and stores memories."
And that's what it took. One comment on hackernews and the prize was retracted. HN at its best! ;)
christophilus 6 hours ago
Well, it does seem that memories may be embedded in the nervous system as well as the brain, so I don’t think the OP is wrong. You sometimes hear of heart transplant patients having other people’s memories / preferences. So, it’s not good evidence, but it’s a possibility.
Earw0rm 4 hours ago
dboreham 3 hours ago
piskov 2 hours ago
Memory stored in RNA is a known thing:
https://www.biorxiv.org/content/10.64898/2026.03.11.711021v1
https://www.sciencealert.com/worms-can-share-memories-of-a-b...
strogonoff 2 hours ago
“A memory begins with tiny changes inside the brain” as truth statement is a basic fallacy of naive physicalism. There is no falsifiable way to ascertain in which direction causality points, nor is natural science even intended provide a definitive answer—it is designed to make predictions and any models that arise in the process are necessarily faulty and do not describe the true nature of underlying reality, which this ultimately comes down to.
Earw0rm 10 hours ago
Flatworms branched off our side of the animal tree of life very early on. They're on the same side as molluscs, some of whom (cephalopods) are famous for having a more distributed nervous system.
Granted though many/most organs are stateful and somewhat adaptive - in a sense they'll "remember" what happened. Even plants possess that to varying degrees.
Roark66 9 hours ago
Did you know human overies contain neurons? I suppose memories are not stored there :-) but still the fact is rather surprising.
HarHarVeryFunny 3 hours ago
adrianN 7 hours ago
j45 9 hours ago
IsTom 9 hours ago
At least spinal cord has a kind of memory related to movement, but that's something else than episodic memory obviously.
Zardoz84 6 hours ago
We found that some kind of gigant unicelular life can remember where was food.
boston_clone 9 hours ago
I think the evidence is strong, here. Quite difficult to form new memories without a brain!
unsupp0rted 4 hours ago
It's amazing after all these years we're still so bad at improving an average person's recall, even by 50%. It feels like there's a lot of low-hanging fruit there, and all we can do is spaced repetition systems, the memory palace, strong associative scents, etc
Weak.
If we had a better understanding of memory perhaps we could give the average person techniques for 10x'ing their recall without jumping through Anki hoops.
kator 7 hours ago
I think the most interesting thing is that it took 15 years for people to apparently take this seriously. And another 40 to recognize its impact. The original paper[1] was from 1982...
Having been in software development for 45 years, I find this crazy. Maybe it's because in our world, it often takes a month for something to spread from "interesting" to the new technology of the day, or the new way of doing things.
[1] https://www.jneurosci.org/content/jneuro/2/3/284.full.pdf
MarceliusK 2 hours ago
I think part of the difference is that in software we can often try the new thing immediately and see whether it helps. In biology, "this is real" and "this is important" are much harder to establish because the system is noisy, the experiments are slow and the implications may not be obvious until other pieces of the puzzle show up
layer8 6 hours ago
It used to be slower in software development as well. The internet and the exponentially increasing number of software developers accelerated it. And of course new hardware that made things practical that were only a theoretical possibility before.
MarceliusK 2 hours ago
A lot of "rapid adoption" in software is really the result of unusually cheap distribution and feedback loops
kator 5 hours ago
True, that said, I downloaded and compiled Perl in 1987 from comp.sources.misc, even back then, things moved at light speed compared to health and medical.
Animats 11 hours ago
Great result on the biochemistry of memory storage. Then they venture into philosophy: "They still struggle to explain the spark that transforms information into insight."
Go watch Stable Diffusion iteratively transform noise into originality.
MarceliusK 2 hours ago
So I'd say diffusion models make the philosophy less mystical but not necessarily solved
project2501a 10 hours ago
i'm sorry, I cannot agree that anything like that can create "originality".
mr_toad 2 hours ago
It still surprises me that people can complain about LLMs making things up (i.e. hallucinating), and simultaneously complain that they never produce anything original.
coldtea 7 hours ago
As opposed to what? Water and tissue?
ProllyInfamous 4 hours ago
taneq 10 hours ago
Creativity can be thought of as a combination of two things: A random idea generator, and a nonsense filter. Generate new random results ideas, filter out the nonsense ones, and you’ve generated good ideas.
itsalwaysgood 6 hours ago
Earw0rm 4 hours ago
boston_clone 9 hours ago
MarceliusK 2 hours ago
What I like about this story is how physical the problem is