Episode #371

Beyond the Etch A Sketch: Building Persistent AI Memory

Why treat AI chats like disposable tissues? Discover how to turn years of prompts into a self-healing, evolving digital brain.

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In the latest episode of My Weird Prompts, hosts Herman and Corn Poppleberry tackle a fundamental frustration shared by almost every power user of artificial intelligence: the "Etch A Sketch" problem. Drawing from a prompt submitted by their housemate Daniel, the brothers explore why we continue to treat our interactions with AI as disposable sessions rather than building a cumulative, persistent digital brain.

The discussion begins with a simple observation of Daniel’s daily habits in Jerusalem. Daniel, a prolific user of AI, has recorded over 365 voice prompts, totaling nearly 25 hours of audio. Yet, despite this massive investment of time and thought, most of that context is lost the moment a new chat session begins. Herman and Corn argue that in the era of advanced models like GPT-5.2 and Gemini 3, the industry's failure to provide a seamless, structured way to export and utilize personal history is a missed opportunity for true personalization.

The Myth of Expensive Storage

One of the most striking points Herman makes during the episode is the economic reality of data storage in 2026. Many users assume that keeping a "lifetime" of chat history would be prohibitively expensive or technically complex. Herman debunks this using the example of Amazon S3 storage tiers.

He points out that the complete works of Shakespeare take up roughly five megabytes. At current cloud storage rates, a user could store 200 copies of Shakespeare’s entire bibliography for about two cents a month. For the average user, even a decade of daily, long-form prompting would likely result in less than 100 megabytes of text. The bottleneck, Herman explains, isn’t the cost of the "bits on the disk"—it is the architecture of how we retrieve and update that information.

The Architecture of a Digital Brain

To move beyond the "Etch A Sketch" model, Herman and Corn propose a shift toward "Agentic RAG" (Retrieval-Augmented Generation). While current models like Llama 4 Scout boast massive context windows—up to ten million tokens—processing that much data for every simple query is inefficient and costly.

Instead, the brothers suggest a specialized personal context store built on vector databases like Qdrant or Chroma. Unlike traditional keyword searches, these databases use semantic search, allowing the AI to understand concepts. This means the AI doesn't just look for the word "pizza"; it understands the concept of "Friday night dinner preferences."

The real innovation discussed in the episode, however, is the "self-healing" aspect of this storage. Corn and Herman envision a system that doesn't just collect data, but actively manages it.

The Auditor and the Janitor: Self-Healing Context

A major challenge with persistent memory is that humans change. Daniel’s prompt raised the question: what happens when I change my mind or my job? If the AI remembers that you were a marketing manager three years ago, but you are now in sales, it can become confused by conflicting data.

Herman proposes a multi-agent orchestration framework, such as Lang-Graph, to solve this. In this setup, two specialized agents manage the user's memory:

  1. The Auditor: This agent monitors incoming prompts to identify new facts. If it detects a conflict—such as a new job title—it flags the old information.
  2. The Janitor: This agent decides whether to delete, update, or archive the conflicting information.

This creates a "closed-loop knowledge runtime," where the database is constantly refining itself. To further refine this, Herman introduces the concept of "temporal weights" or "decay rates." Just as human memory fades, a digital brain should give less weight to transient interests (like a sourdough phase from six months ago) while keeping immutable facts (like a birthplace) at the forefront.

Why the AI’s Voice Matters

A significant portion of the conversation focuses on the value of saving not just the user's prompts, but the AI's outputs. Corn notes that AI outputs often represent the most "refined" version of a user's messy, rambling thoughts. By saving these outputs, users are essentially archiving their best ideas in a structured format.

To prevent the database from becoming bloated with "AI fluff," Herman suggests a summarization layer. A specialized agent could distill long AI responses into high-density summaries before they are committed to the long-term vector memory, ensuring the "digital brain" remains lean and efficient.

The Power of the Rambling Prompt

Finally, the brothers discuss the unique value of voice prompting. Daniel’s habit of pacing the garden while talking to his AI isn’t just a matter of convenience; it’s a superior way to provide context. When users type, they tend to be concise and transactional. When they speak, they provide nuances, examples, and emotional metadata.

With the advent of speech-to-speech models like Amazon Nova 2 Sonic, the AI can now detect stress, excitement, or hesitation. This extra layer of data makes the resulting context store far richer than a collection of short text snippets.

Conclusion: From Stranger to Friend

The episode concludes with a vision of the near future where AI interactions feel less like talking to a stranger and more like talking to a long-time friend. By moving toward a self-healing, persistent context store, users can stop "shaking the screen blank" and start building a digital partner that truly understands their history, their growth, and their evolving needs. As Herman puts it, the goal is to turn AI from a disposable tool into a "permanent, evolving digital brain."

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Episode #371: Beyond the Etch A Sketch: Building Persistent AI Memory

Corn
Hey everyone, welcome back to My Weird Prompts. I am Corn, and I am joined as always by my brother.
Herman
Herman Poppleberry, at your service. And man, Corn, do we have a meaty one today. Our housemate Daniel sent over a prompt that is basically a direct challenge to how we have been interacting with these AI systems for the last few years.
Corn
It really is. It is funny because we have been living in this house in Jerusalem together for a while now, and I see Daniel recording these prompts all the time. He is often pacing in the garden or sitting in the kitchen with his phone out, just talking to the AI. And his point is so simple but so profound. Why are we treating these interactions like disposable tissues? We use them once, we get what we need, and then we just toss the history into a digital landfill.
Herman
Exactly. It is the Etch A Sketch problem. Every time you start a new chat session, you are shaking the screen blank. You have to re-explain who you are, what your preferences are, what your background is. It is inefficient, and as Daniel pointed out, it is actually kind of crazy when you consider how cheap text storage is here in early twenty-twenty-six.
Corn
Right, and he mentioned that he has been recording these long voice prompts for the show for three hundred and sixty-five episodes now. If you think about it, that is a massive amount of personal context. If each prompt is roughly four minutes long, that is over one thousand four hundred minutes of audio. That is nearly twenty-five hours of Daniel explaining his thoughts, his questions, and his life to an AI.
Herman
It is a goldmine of data. And yet, even with the latest flagship models like G-P-T five point two or Gemini three, the vendors still make it surprisingly difficult to actually do anything with that history. You can scroll back through your chats, sure, but try exporting that to a structured database or a personal wiki in a way that is actually useful. It is almost like they want the data to stay siloed in their little interface.
Corn
So today we are going to dive into this idea of building a self-healing store of context. How do we take those years of prompts and outputs and turn them into a permanent, evolving digital brain? We are going to look at the technical side, the vector databases, the retrieval mechanisms, and that specific challenge Daniel raised, which I think is the most interesting part, the self-healing aspect. How does the system know when a fact about your life has changed?
Herman
I love that term, self-healing. In the industry right now, we are calling this a closed-loop knowledge runtime. It implies that the data is not just sitting there rotting, but is being actively maintained. Before we get into the weeds, I think we should acknowledge that we touched on some of this in episode three hundred and sixty-one when we talked about building a unified AI workspace. But this goes deeper. This is not just about where the AI lives, but about what the AI knows about you on a fundamental level.
Corn
Let us start with the storage argument. Daniel said text storage is extremely cheap. Herman, you are the one who is always looking at server costs and architecture. Is he right? Just how cheap are we talking here?
Herman
He is absolutely right. In fact, he might be understating it. If you look at something like Amazon Simple Storage Service, or S-three, specifically their Intelligent-Tiering, the cost for the frequent access tier is roughly two point three cents per gigabyte per month. But for the archive tiers, it drops to less than half a cent. Now, think about how much text fits in a gigabyte. The complete works of Shakespeare are about five megabytes. You could store two hundred copies of the entire works of Shakespeare for two cents a month.
Corn
That is wild. So every single prompt Daniel has ever sent us, plus every output the AI has ever generated, probably adds up to... what? A few dozen megabytes?
Herman
Maybe. Even if he were the most talkative person on Earth, he would struggle to hit a hundred megabytes of pure text in a year. We are talking about fractions of a penny to store a lifetime of intellectual output. The bottleneck is not the cost of the bits on a disk. The bottleneck is the architecture of how we retrieve and update that information.
Corn
So if the cost is a non-issue, why aren't the big companies doing this better? Why is it still so hard to have a persistent memory that feels real?
Herman
Well, I think there are two reasons. One is privacy and liability, especially with the E-U A-I Act now in full effect. The more they know about you, the more of a target they become for data breaches or regulatory scrutiny. But the second reason is the technical trade-off of the context window. For a long time, these models could only remember a few thousand words. Now, we have models like Llama four Scout with a ten million token context window, which is incredible, but it is still expensive to process ten million tokens every time you ask a simple question like, what should I have for dinner?
Corn
Right. You don't want the AI to read your entire diary just to suggest a pasta recipe.
Herman
Exactly. That is why we need a better system, something like what Daniel is suggesting. A specialized store that prunes and updates itself. We call this Agentic R-A-G, or Retrieval-Augmented Generation.
Corn
Okay, so let us talk about the tool Daniel asked for. If we were to build our own tool to handle this, what would the stack look like? I am assuming we start with a vector database?
Herman
Definitely. For the listeners who might not be familiar, a vector database stores information as mathematical coordinates in a high-dimensional space. When you ask a question, the system looks for the pieces of information that are geometrically closest to your question. It is called semantic search. For a personal context store in twenty-twenty-six, I would recommend Qdrant or Chroma. Qdrant is written in Rust, so it is incredibly fast for local-first setups, and Chroma is great for developers who want something simple.
Corn
So instead of searching for the word pizza, it searches for the concept of Italian food or things I like to eat on Friday nights.
Herman
Exactly. And the real magic, the part Daniel is asking about, is the pipeline that gets the data in and out. If you just dump every prompt into a database, you end up with a lot of noise. Daniel mentioned that he might say one thing one week and then change his mind the next. He gave the example of liking pizza one week and preferring pasta the next. Or moving from a job in marketing to a job in sales. If the AI sees both facts, it gets confused.
Herman
This is where the self-healing part comes in. If I were building this today, I would use a multi-agent orchestration framework like Lang-Graph. You would have one agent whose only job is to watch new prompts come in and identify facts. Let us call it the Auditor.
Corn
So the Auditor would see a prompt and say, oh, Daniel just said he started a new job in sales. Let me check the existing memory.
Herman
Precisely. It finds the old entry that says Daniel works in marketing and it flags it as a conflict. Then, a second agent, the Janitor, comes in and decides whether to delete the old fact or archive it. For things like a job change, you probably want to archive it so the AI still knows your history, but the primary fact gets updated. This creates a closed-loop system where the database is constantly refining itself.
Corn
That makes a lot of sense. It is like a memory consolidation process that humans do when we sleep. But how do you handle the permanent facts? Daniel mentioned he was born in Dublin. That is never going to change.
Herman
You would use a tiered storage system. You could tag certain vectors as immutable. Things like your place of birth, your family members, your core values. Those get a higher weight in the retrieval process. Then you have the transient facts, like your current favorite T-V show. Those should have a built-in decay rate.
Corn
A decay rate? Like radioactive half-life for data?
Herman
Sort of. In computer science, we call it a temporal weight. If you haven't mentioned your interest in sourdough bread for six months, the system should probably stop bringing it up every time you ask for a grocery list. It stays in the long-term memory, but it doesn't clutter the immediate context.
Corn
I love that. It feels much more human. Now, Daniel also mentioned the value of saving the outputs. Why is it important to save what the AI said back to you?
Herman
Because the AI's outputs often contain the refined version of your own ideas. When we talk to these systems, we often give them a messy, rambling prompt, and they give us back a structured plan. If you only save the prompt, you are losing the clarity that the AI helped you achieve. By saving the output, you are essentially saving the best version of your own thoughts.
Corn
That is a great point. But there is a challenge here, which is the sheer volume of output. AI can be very wordy. How do you keep the database from getting bloated with fluff?
Herman
You need a summarization layer. Before an output gets stored in the long-term memory, you have another agent that distills it down to its essence. It extracts the key decisions and unique insights. You save the full text in a cheap archival store like S-three for reference, but the vector database only gets the high-density summary.
Corn
So, let us talk about the practical side for a listener who wants to start doing this now. Most people are using the web interfaces for Chat-G-P-T or Claude. They don't have a custom-built agent team. What can they do today to start building this context?
Herman
There are a few ways to hack it. One is to use a local-first tool like Obsidian or Logseq. There are plugins now that can automatically send your notes to a local model like Llama four Scout. If you are a bit more technical, you could use a tool like Make dot com to create a workflow. Every time you save a document in Google Drive, it gets sent to a vector database like Pinecone.
Corn
I have seen some people using a master context document. They keep a single text file that they copy and paste into every new chat session. It contains their bio, their current projects, and their style preferences. It is low-tech, but it works.
Herman
It works for now, but it is not scalable. As Daniel's prompt history grows, that document would become a book. The real future is what we call R-A-G, where the AI itself decides what parts of your history it needs to see based on your current question.
Corn
Right, so if I ask, what should I get for Daniel's birthday? the system looks through the last year of prompts, finds where Daniel mentioned he wanted a new espresso machine, and brings that specific fact into the conversation.
Herman
Exactly. And that is where the personalized AI interaction really starts to feel like magic. It is the difference between talking to a stranger and talking to a long-time friend who actually listens.
Corn
I want to go back to the voice prompt aspect. Daniel mentioned that he prefers voice because it lets him inject more context. I have noticed this too. When I type, I am very concise. But when I talk, I ramble, I give examples, I explain my mood. There is so much more metadata in a voice prompt.
Herman
Absolutely. And with the new native speech-to-speech models like Amazon Nova two Sonic or the Grok Voice Agent, the system can actually hear the emotion in your voice. We are reaching a point where the system can tell if you are stressed or excited just from the audio. Even just the transcript of a four-minute voice prompt is orders of magnitude more useful than a two-sentence typed prompt.
Corn
It is the difference between saying, write a meal plan, and saying, hey, I am feeling kind of tired today, I had a big lunch so I want something light, and I have some spinach in the fridge that is about to go bad. The second one gives the AI so many more hooks to be helpful.
Herman
And if you store that, the AI learns over time that you often feel tired on Tuesday nights and that you hate wasting spinach. That is the grounded, personalized interaction Daniel is talking about. It is building a model of you.
Corn
Now, we have to talk about the elephant in the room. Privacy. If I am building this incredibly detailed digital twin of myself, that is a huge security risk. If that database gets hacked, it is my entire identity.
Herman
It is a massive concern. This is why I am a big advocate for local-first AI. We have powerful models now like Gemma three-n that can run on your own hardware. If you keep your vector database on your own machine, here in Jerusalem, and you only send the specific, anonymized chunks of data to the cloud when needed, you reduce your surface area for attack significantly.
Corn
But most people aren't going to run their own server.
Herman
Then we need better encryption. We are seeing more development in zero-knowledge proofs and end-to-end encrypted databases where the provider can't even see the data they are storing. It is a technical hurdle, but it is one the industry has to solve if we want people to trust these systems with their lives.
Corn
You know, it reminds me of the early days of the web when people were afraid to put their credit card numbers into a browser. Now we do it without thinking. We might reach a point where we are so used to AI knowing us that the risk feels worth the reward.
Herman
I think that is inevitable. The value of an AI that truly understands you is just too high to pass up. Imagine an AI that can handle your scheduling because it knows your energy levels, or that can ghostwrite your emails because it has internalized your voice over thousands of prompts. That is a superpower.
Corn
It really is. And I think Daniel is right that we are in this weird transition period where the users are ahead of the vendors. We can see the value in this data, but the tools to manage it are still being built.
Herman
Which is why I love that he is thinking about building his own tool. If you are listening and you have some coding skills, this is the time to be building these kinds of personal context layers. The A-P-Is are there, the storage is cheap, and the models are getting smarter every day.
Corn
So, to recap the recommendation for Daniel and anyone else thinking about this. Use a vector database like Qdrant. Build a pipeline that transcribes your voice prompts. Have an agent layer that extracts facts and summarizes outputs. And most importantly, implement a self-healing mechanism that updates old information and prunes the fluff.
Herman
And don't forget to keep a separate, immutable store for those core life facts. You only need to tell the AI you were born in Dublin once. After that, it should be part of its permanent hardware, so to speak.
Corn
I wonder what the second-order effects of this will be. If we all have these highly personalized AI agents, does it change how we interact with each other? If my AI knows everything about me, and your AI knows everything about you, do our AIs just talk to each other to settle our disagreements?
Herman
Ha! That is a scary thought. The battle of the digital twins. But on a more positive note, I think it could help with the loneliness and the feeling of being overwhelmed. Having a system that truly remembers you, that knows your history and your goals, it is a form of support that we have never had before.
Corn
It is like having a digital biographer who is also a personal assistant. It is a very strange and exciting time.
Herman
It really is. And I think we should mention that if you want to see how we are using these prompts, you can go to our website at myweirdprompts dot com. We have the R-S-S feed there, and a contact form if you want to send us your own weird prompts. We love hearing from you guys.
Corn
And hey, we are a small show, and we really rely on word of mouth. If you are finding these deep dives helpful, please take a second to leave us a review on Spotify or whatever podcast app you are using. It genuinely helps other curious people find us.
Herman
It really does. We see every review, and we appreciate them more than you know.
Corn
So, Herman, any final thoughts on Daniel's self-healing store?
Herman
Just that I think we are going to look back on this era of stateless AI, where every chat is a fresh start, and think it was incredibly primitive. It is like having a conversation with someone who has amnesia every ten minutes. The future is persistent, it is personal, and it is going to be powered by the very history we are currently throwing away.
Corn
I couldn't agree more. It makes me want to go back and find all my old prompts from three years ago and see what I can learn about myself.
Herman
You might be surprised. You might find out you used to like pizza more than you thought.
Corn
Guilty as charged. Well, this has been a fascinating journey into the digital brain. Thanks to Daniel for sending this in and pushing us to think about the long-term value of our interactions.
Herman
Absolutely. Thanks for the prompt, Daniel. And thanks to all of you for listening to My Weird Prompts.
Corn
We will be back next week with another exploration into the obscure and the mind-bending. Until then, keep asking those weird questions.
Herman
And keep saving those outputs! You never know when you might need to remind your AI who you are.
Corn
See you next time.
Herman
Bye everyone!
Corn
This has been My Weird Prompts. You can find us on Spotify and at myweirdprompts dot com. Our show is a collaboration between us, our housemate Daniel, and some very clever AI tools. We live and work in Jerusalem, and we are so glad you joined us today.
Herman
Herman Poppleberry here, signing off. Stay curious, stay nerdy, and we will talk to you in the next one.
Corn
Take care.
Herman
And don't forget that review if you have a spare second! It really helps the show reach new listeners.
Corn
Alright, alright, they get it, Herman. Let us let them go.
Herman
Just making sure! See you later.
Corn
Bye.

This episode was generated with AI assistance. Hosts Herman and Corn are AI personalities.

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