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When I asked ChatGPT what it remembered about me, it listed 33 facts—from my name and career goals to my current fitness routine. But how does it actually store and retrieve this information? And why does it feel so seamless? After extensive experimentation, I discovered that ChatGPT’s memory system is far simpler than I expected. No vector databases. No RAG over conversation history. Instead, it uses four distinct layers: session metadata that adapts to your environment, explicit facts stored long-term, lightweight summaries of recent chats, and a sliding window of your current conversation.

Ahead of AI specializes in Machine Learning & AI research and is read by tens of thousands of researchers and practitioners who want to stay ahead in the ever-evolving field. Click to read Ahead of AI, by Sebastian Raschka, PhD, a Substack publication with hundreds of thousands of subscribers.

Welcome to the age of Agentic AI. An era where artificial intelligence doesn’t just assist you, it acts for you. Think less “Siri set a…

Learn the fundamentals of building Generative AI applications with our 18-lesson comprehensive course by Microsoft Cloud Advocates. Recommended resources Generative AI for Beginners GitHub repo

Kaggle is the world’s largest data science community with powerful tools and resources to help you achieve your data science goals.

The Startup CTO's Handbook, a book covering leadership, management and technical topics for leaders of software engineering teams - ZachGoldberg/Startup-CTO-Handbook

To celebrate 50k subscribers to Product for Engineers, here are the 50 most important lessons we’ve learned about building great products.

A free weekly newsletter that brings all the recently uploaded talks from +100 software engineering conferences. Join +4K readers who stopped scrolling through messy YT subscriptions and reduced FOMO. Easy to unsubscribe. No spam, ever. Click to read Tech Talks Weekly, a Substack publication with thousands of subscribers.

From zero to ChatGPT

What I think about when I'm lead engineer on a project

Cognitive Biases and Principles you can use to create products people love

Curated list of awesome articles and resources to learn and practice about software architecture, patterns and principles.

Five principles for making the most of life's twists and turns.

Explaining the world one sketch at a time — each sketch explains an idea or concept. Explore, search and share. Start here.

Weekly newsletter for becoming a great engineering leader. Click to read Engineering Leadership, by Gregor Ojstersek, a Substack publication with tens of thousands of subscribers.

Blissful unawareness, denial, then acceptance, then resistance. And finally, a pragmatic middle ground. This is the typical journey engineers go through in their relationship with tech debt. It's tempting to get straight to the point: how to remove tech debt, and how to keep it at bay. But that would

How long working hours don’t help you in the long term

The Curiosity Chronicle has quickly become one of the most popular newsletters for growth-minded individuals in the world. Each week, subscribers receive a deep dive that covers topics ranging from growth and decision-making to business, finance, startups, and technology. In addition, subscribers receive The Friday Five, a weekly newsletter with five ideas curated to spark curiosity headed into the weekend.

Karri Saarinen, co-founder and CEO, on taste over metrics, product teams over product managers, strategy over OKRs, plus craft, profitability, and ownership

Most, if not all, developers are at least somewhat familiar with the concept of caching. After all, this technology is so ubiquitous nowadays, from CPU to browser caching, that all software relies …

How elite software engineers maintain outperformance

How to retain your engineering MVPs

Final part of a series exploring application autoscaling in Kubernetes

Engineers at all levels are encouraged to embrace curiosity, showcasing that asking questions, can pave the way for innovation and deeper understanding. Remember, the right question at the right time can be the catalyst for groundbreaking advancements in technology.

Or "that time I built Excel for Uber and they ditched it like a week after launch"

This blog explains different types of automation testing along with their benefits and best practices. Also we have discussed different frameworks and tools at the end.

The most extensive list of engineering career ladders, including the progression frameworks of Medium, Basecamp, Spotify, CircleCI, and 30+ others!