Hacker News with Generative AI: Memory

For algorithms, a little memory outweighs a lot of time (quantamagazine.org)
One computer scientist’s “stunning” proof is the first progress in 50 years on one of the most famous questions in computer science.
Algorithms, Computer Science, Time Complexity, Memory
331 points by makira 2 days ago | 126 comments
Spaced repetition memory system (2024) (andymatuschak.org)
A spaced-repetition memory system combines the Testing effect and the Spacing effect to enable efficient memorization of many thousands of facts (Spaced repetition memory systems are extremely efficient). Some people also use them for a broader set of tasks (see below). Spaced repetition memory systems make memory a choice, but they’re not just for rote facts: Spaced repetition memory systems can be used to develop conceptual understanding.
Memory, Learning, Technology, Education
275 points by gasull 5 days ago | 43 comments
Spaced repetition systems have gotten better (domenic.me)
Mastering any subject is built on a foundation of knowledge: knowledge of facts, of heuristics, or of problem-solving tactics.
Learning, Spaced Repetition, Memory, Cognitive Science
1010 points by domenicd 5 days ago | 503 comments
Rethinking Memory in AI: Taxonomy, Operations, Topics, and Future Directions (arxiv.org)
Memory is a fundamental component of AI systems, underpinning large language models (LLMs) based agents.
Artificial Intelligence, Memory, Research
5 points by wjSgoWPm5bWAhXB 10 days ago | 0 comments
Sleep apnea during REM sleep linked to memory-related brain changes (sciencedaily.com)
Obstructive sleep apnea, a condition that causes lower oxygen levels during sleep, is linked to degeneration of brain regions associated with memory through damage to the brain's small blood vessels, according to a study published May 7, 2025, online in Neurology®, the medical journal of the American Academy of Neurology.
Sleep Disorders, Brain Health, Memory, Science
5 points by lentoutcry 15 days ago | 0 comments
Jamais vu: the science behind eerie opposite of déjà vu (2023) (theconversation.com)
Repetition has a strange relationship with the mind. Take the experience of déjà vu, when we wrongly believe have experienced a novel situation in the past – leaving you with an spooky sense of pastness. But we have discovered that déjà vu is actually a window into the workings of our memory system.
Psychology, Memory, Science, Cognitive Neuroscience
7 points by gnabgib 17 days ago | 0 comments
Time Between The Lines: how memory access affects performance (2015) (bitbashing.io)
As programmers, one of our main jobs is to reason about algorithms and put them to use.
Performance, Memory, Programming, Algorithms
11 points by signa11 18 days ago | 3 comments
Both novelty and familiarity affect memory (theconversation.com)
When getting ready to take exams, it can sometimes feel as though there’s no way all the information you need to remember is going to fit in your brain. But there are ways to create the right conditions to make your studying as efficient as possible.
Memory, Learning, Education, Psychology
7 points by amichail 20 days ago | 0 comments
Dopamine signals when a fear can be forgotten (picower.mit.edu)
A new study in mice by MIT neuroscientists shows that the signal is the release of dopamine along a specific interregional brain circuit.
Neuroscience, Fear, Memory, Brain, Mice
215 points by gmays 22 days ago | 133 comments
Are you the same person you used to be? (2022) (newyorker.com)
I have few memories of being four—a fact I find disconcerting now that I’m the father of a four-year-old.
Memory, Personal Growth, Fatherhood, Self-Reflection
84 points by rbanffy 22 days ago | 108 comments
Researchers develop picosecond-level flash memory device (fudan.edu.cn)
Researchers from Shanghai-based Fudan University have developed a picosecond-level flash memory device with an unprecedented program speed of 400 picoseconds, equivalent to operating 25 billion times per second, shattering the existing speed limits in information storage.
Technology, Hardware, Memory, Science, Research
15 points by croes 34 days ago | 12 comments
All-in-Memory Stochastic Computing Using ReRAM (arxiv.org)
As the demand for efficient, low-power computing in embedded and edge devices grows, traditional computing methods are becoming less effective for handling complex tasks.
Computing, Hardware, Memory, Artificial Intelligence, Research
30 points by rbanffy 39 days ago | 1 comments
What my stroke taught me (2017) (nautil.us)
In my memories of the Scottish hospital, the sky is always blue, though I know that can’t be completely accurate.
Personal Experience, Health, Memory
118 points by blegh 39 days ago | 72 comments
V-Color 96GB DDR5-5600 48GB X2 ECC Udimm Kit Quick Look (servethehome.com)
A few weeks ago we took a quick look at the Micron 32GB DDR5-5600 ECC UDIMM Kit. We saw in the comments that folks recommended the V-Color 96GB kit. The kit came with two 48GB ECC UDIMMs for 96GB total. We paid $399 for the two DIMM kit. This is more than many non-ECC UDIMMs, but since the 32GB Micron ECC UDIMMs are $220 each, this V-Color kit offers more capacity at a lower cost.
Hardware, RAM, Memory, Computer Components, Reviews
8 points by teleforce 39 days ago | 1 comments
The New Moat: Memory (jeffmorrisjr.substack.com)
OpenAI's memory upgrades signals the start of what may become the most transformative shift since GPT-3’s debut.
AI, Generative AI, Software, Memory
17 points by jeffmorrisjr 40 days ago | 22 comments
Reminiscence Bump (wikipedia.org)
The reminiscence bump is the tendency for adults over forty to have increased or enhanced recollection for events that occurred during their adolescence and early adulthood.
Memory, Psychology, Aging, Cognitive Science
5 points by amichail 41 days ago | 0 comments
New DRAM+ memory designed to provide DRAM performance with SSD-like capabilities (tomshardware.com)
Memory, Hardware, SSD, Performance
3 points by rbanffy 45 days ago | 0 comments
Show HN: Owl, a Spaced Repetition App (owl.cards)
Memory is fleeting. Owl uses the science of spaced repetition to help you retain more knowledge and be more creative.
Memory, Spaced Repetition, Learning, Software, Productivity
14 points by fredoliveira 50 days ago | 15 comments
Identifying a defective RAM IC on laptops with soldered memory (piernov.org)
Warning: some information in this article is uncertain and based onto third-party reverse engineering efforts. Official documentation from the memory controller manufacturer is required, however Intel does not make it public. This only shows the idea to narrow down the fault. Additionally, other factors such as a PCB or CPU fault could be the cause and not the RAM ICs themselves (e.g. common failure on MacBook Air 13" 2011 with board number 820-3023).
Hardware, Laptop Repair, Troubleshooting, Memory, Reverse Engineering
53 points by userbinator 51 days ago | 9 comments
Bolt Graphics Zeus a New GPU Architecture with Up to 2.25TB of Memory and 800GbE (servethehome.com)
Bolt Graphics Zeus The New GPU Architecture with up to 2.25TB of Memory and 800GbE
Hardware, Memory, Networking
27 points by Teever 55 days ago | 12 comments
Show HN: Cursor IDE now remembers your coding prefs using MCP (ycombinator.com)
Hi, I'm Daniel from Zep. I've integrated the Cursor IDE with Graphiti, our open-source temporal knowledge graph framework, to provide Cursor with persistent memory across sessions.
Software, Programming, Open Source, Artificial Intelligence, Memory
109 points by roseway4 56 days ago | 39 comments
RDNA 4's “Out-of-Order” Memory Accesses (chipsandcheese.com)
AMD's RDNA 4 brings a variety of memory subsystem enhancements. Among those, one slide stood out because it dealt with out-of-order memory accesses. According to the slide, RDNA 4 allows requests from different shaders to be satisfied out-of-order, and adds new out-of-order queues for memory requests.
AMD, Graphics Cards, Hardware, Memory, Performance
165 points by ingve 61 days ago | 11 comments
"Infantile amnesia" occurs despite babies showing memory activity (arstechnica.com)
For many of us, memories of our childhood have become a bit hazy, if not vanishing entirely. But nobody really remembers much before the age of 4, because nearly all humans experience what's termed "infantile amnesia," in which memories that might have formed before that age seemingly vanish as we move through adolescence. And it's not just us; the phenomenon appears to occur in a number of our fellow mammals.
Memory, Neuroscience, Childhood, Psychology, Animals
7 points by nobody9999 61 days ago | 1 comments
Targeting Brain's Drainage Pathways Rejuvenates Memory (neurosciencenews.com)
Now, researchers at Washington University School of Medicine in St. Louis report they have found a way around that problem by targeting the network of vessels that drain waste from the brain. Rejuvenating those vessels, they have shown, improves memory in old mice.
Neuroscience, Aging, Memory, Brain Health
8 points by amichail 62 days ago | 4 comments
Brain scans of infants reveal the moment we start making memories (singularityhub.com)
Kids form fleeting memories at around 12 months, even as their brains are rapidly rewiring themselves.
Brain Science, Memory, Infants, Development
130 points by Brajeshwar 63 days ago | 67 comments
'We remember as true things that never even happened': Julian Barnes (theguardian.com)
The Booker-prize winning novelist reflects on the times in his life when recollection and imagination have intertwined, and wonders whether we can ever rely on our brains to provide us with the truth
Memory, Literature, Imagination, Truth
6 points by bookofjoe 67 days ago | 0 comments
I outsourced my memory to an AI pin and all I got was fanfiction (theverge.com)
There’s a glimmer of a good idea here. But after a month of testing, I’ve never felt more gaslit.
Artificial Intelligence, Technology, Personal Experience, Memory
25 points by petemir 70 days ago | 16 comments
What We Lose When Our Memories Exist in Our Phones (bloomberg.com)
The act of putting something aside is an exercise in remembering.
Memory, Technology, Psychology, Digital Dependence
79 points by JumpCrisscross 76 days ago | 31 comments
Number-Colour-Phoneme Associations: From IBM CGA Colours to Mnemonic Systems (susam.net)
This is a vanity page that records some of the associations between various numbers, colours, and phonemes as they appear in my mind. I must mention here that I do not have synaesthesia. Many of these connections were shaped by childhood experiences. Notably, two unrelated influences, learning about computers and studying mnemonic systems, have played a significant role in forming these associations.
Memory, Cognitive Science, Psychology, Computing, Mnemonics
29 points by susam 83 days ago | 8 comments
ADHD Guide to Spaced Repetition (brick.do)
This article assumes you have already tried spaced repetition but either still struggle to do it regularly or gave up on it altogether because it was too boring. If you haven't tried it before, go sign up for Memcode.com right now (or download Anki if you hate yourself), create four flashcards on something you're currently learning, and come back in three months.
ADHD, Learning, Spaced Repetition, Memory
29 points by lakesare 85 days ago | 9 comments