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Your dictionary for AI terms like LLM and RLHF
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"Subscribed for quick summaries of topics. Saves time. Googling and Youtube and collating info isn't convenient."

— RB

Technically

Making practical sense of software and AI.

AI
Recent Articles

What’s an inference provider?

How the rise of open source AI models is fueling the growth of a new infrastructure category.

I Let Claude Code Autonomously Run Ads for a Month

Applying the Ralph Wiggum loop to things other than writing code.

How AI content detectors work

Learn how AI detectors work

AI Reference

Training Dataset

Training datasets are the examples you show an AI model so it can learn to recognize patterns and make predictions.

Prompt Engineering

Prompt engineering is the art of talking to AI models in a way that gets you the results you actually want.

Terms

Machine Learning

Machine Learning uses math to predict an output given an input

LLM

Large Language Models take in a prompt and generate text.

All AI →
Analytics
Recent Articles

Databricks is apparently worth $100B. What do they even do?

What we should really be asking is “What does Databricks not do?”

What does Alteryx do?

Alteryx is a group of tools that helps business teams get insights out of their data, without needing to write any code.

What's a Data Migration?

Data migration is about transferring information (data) from one place to another.

Terms

ETL

ETL stands for Extract - Transform - Load, and it’s the process of moving data around your internal systems to get it ready for analysis.

Product analytics

Product analytics is the process of companies figuring out what users are actually doing in their product, with the goal of improving it.

Companies
Snowflake

Snowflake

Snowflake sells a powerful cloud data warehouse for analytics and data science teams.

Databricks

Databricks

Databricks sells a data science and analytics platform built on top of an open source package called Apache Spark.

All Analytics →
Databases
Recent Articles

Why do developers choose different types of databases?

An intro to how companies like Elastic, MongoDB, Snowflake, Confluent and AWS compete.

Terms

Multi-tenant

Multi-tenant simply means shared with someone else, like having a roommate in an apartment.

Vector Database

A vector database is a place where developers store specially formatted data to use for machine learning and AI.

Companies
MongoDB

MongoDB

MongoDB is a highly popular unstructured, NoSQL document database for powering your applications.

Confluent

Confluent

Apache Kafka is a framework for streaming real time data, and Confluent offers Kafka as a managed service.

All Databases →
DevOps
Recent Articles

A Beginner’s Guide to Bring Your Own Cloud

The profitable but challenging deployment model sweeping the nation.

What's documentation?

How companies like Stripe win by writing better product docs, and where platforms like GitBook can help.

Developers hate this one thing (all about code reviews)

A deep dive into why code reviews take so long, how AI tools like CodeRabbit are speeding them up, and what great teams do to ensure clean code.

Terms

Scaling

Scaling means making something bigger: more users of your app, more API requests, more data in your database, a bigger server, more servers, etc.

DevOps

DevOps is a process (e.g. a bunch of key practices) that helps teams take software they’ve built and make sure it works well at scale.

Companies
Datadog

Datadog

Datadog is monitoring software - developers use it to get operational visibility into their servers and applications.

Gitlab

Gitlab

GitLab is a giant tool for literally anything you'd want to do relating to building and deploying software.

All DevOps →
Security
Terms

Tokenization

Tokenization is one of the ways that backends protect sensitive information, like credit cards or social security numbers.

VPN

A Virtual Private Network (VPN) lets you route your internet access through a specialized server that keeps your sensitive information private.

Companies
Okta

Okta

Okta is an enterprise-focused identity provider: they take care of managing usernames, passwords, and permissions.

Snyk

Snyk

Snyk helps developers make sure that the code they're writing is secure.

All Security →

"Technically has allowed me better bridge the gap between user problems and how our system works under the hood."

— Adelaide Hallowell

Latest
AI, tractors and the productivity paradox

AI, tractors and the productivity paradox

Where are AI's productivity gains hiding? What kitted out Model Ts can teach us.

Sachin BennySachin Benny

Recent

When not to vibe codeFree

Should I ship something myself, or call in engineering help?

Sarah Krasnik BedellSarah Krasnik Bedell

What’s an inference provider?

How the rise of open source AI models is fueling the growth of a new infrastructure category.

Will RaphaelsonWill Raphaelson

I Let Claude Code Autonomously Run Ads for a MonthFree

Applying the Ralph Wiggum loop to things other than writing code.

A Beginner’s Guide to Bring Your Own Cloud

The profitable but challenging deployment model sweeping the nation.

Will RaphaelsonWill Raphaelson
AI ReferenceSee all →

The guide to AI that you've been looking for. Click on any term for an in depth explanation.

RAGRetrieval Augmented Generation (RAG) is a way to make LLMs like GPT-4 more accurate and personalized to your specific dataReasoningAI reasoning is how artificial intelligence systems solve problems, think through complex situations, and draw conclusions from available information.Reinforcement Learning from Human Feedback (RLHF)RLHF is the final training step that turns a knowledgeable but rambling AI into the helpful assistant you know and love.TokenA token is the basic unit of a Large Language Model's vocabulary.
How AI content detectors work

How AI content detectors workFree

Learn how AI detectors work

Christy BieberChristy Bieber
What are prediction markets?

What are prediction markets?Free

What are prediction markets and how much revenue is Kalshi really making?

Sam SchneiderSam Schneider
What's a Forward Deployed Engineer?

What's a Forward Deployed Engineer?Free

And why is every startup around following the Palantir model?

Sung Won ChungSung Won Chung
How I use AI for writing (part 1)

How I use AI for writing (part 1)Free

On ethics, vibes and knowing what you're good at.

Justin GageJustin Gage
CompaniesSee all →

What their products actually do and why they're so valuable.

AlgoliaAlgolia
Algolia provides a set of tools that helps engineers build search functionality into their apps.
CloudflareCloudflare
Cloudflare provides networking tools that help companies distribute their apps globally and securely.
GitlabGitlab
GitLab is a giant tool for literally anything you'd want to do relating to building and deploying software.
JFrogJFrog
JFrog provides a bunch of products and services around DevOps, i.e. taking your software and deploying it to the world.
GlossarySee all →

Quick explanations of the concepts you see every day.

Data lakeA Data Lake is an unstructured place to put data. It’s usually meant for long term storage and infrequent querying.InfrastructureInfrastructure is a loose term that developers use to refer to the lower level components that hold up an application.KafkaApache Kafka is a framework for streaming data between internal systems.MetadataMetadata is data about data (🤯).

Video

Analyzing all 203 million trades on Kalshi

Analyzing all 203 million trades on Kalshi

Kalshi just raised a new round at an $11B valuation. How much revenue does their prediction market really make?

Sam SchneiderSam Schneider
Relationships are the moat

Relationships are the moat

What's the forward deployed engineer role, and why is every startup hiring them?

Sung Won ChungSung Won Chung
Technically on YouTube →

Contributors

Christy BieberChristy BieberJustin GageJustin GageKenny NingKenny NingSachin BennySachin BennySam SchneiderSam SchneiderSarah Krasnik BedellSarah Krasnik BedellSung Won ChungSung Won ChungWill RaphaelsonWill Raphaelson

Learning Tracks

Curated collections of foundational articles to guide you through the basics of getting more technical at work.

AI, it's not that complicated ↗

How to understand and work effectively with AI and ML models and products.

  • How do Large Language Models work?

    Breaking down what ChatGPT and others are doing under the hood

  • What's RLHF?

    How AI models learned to stop being weird and start being helpful.

  • What's GPT-3?

    GPT-3 is a Machine Learning model that generates text.

  • What’s a data science notebook?

    Data Science Notebooks help data teams explore data with code.

Analyzing Software Companies ↗

The products and business models of leading software companies.

  • Databricks is apparently worth $100B. What do they even do?

    What we should really be asking is “What does Databricks not do?”

  • What does Snowflake do?

    Snowflake sells a powerful cloud data warehouse for analytics and data science teams.

  • What does OpenAI do?

    OpenAI is the most popular provider of generative AI models like GPT-4.

  • What does dbt do?

    dbt (no capitals) is a tool for transforming and organizing data in your warehouse.

Building Software Products ↗

How to make positive contributions to your product roadmap.

  • The top 5 things PMs should know about engineering

    Engineering and code basics that can make you a better PM to work with.

  • What's code?

    Code is step by step directions, but for computers.

  • What's the internet?

    A network of computers all connected to each other and sharing information.

  • What's cloud?

    Cloud is how companies rent infrastructure over the internet.

From Spreadsheets to Databases ↗

You've outgrown Excel, but you've got to put that data somewhere besides your parents basement.

  • The Beginner's Guide to Databases

    There are 300+ databases; what do they all do?

  • SQL for the rest of us

    If you’re not a data scientist but you have questions, you want to know SQL.

  • The Excel User's Guide to Databases: Schemas

    Why that schema change is going to take your engineers two weeks.

  • The Excel User's Guide to Databases: Migrations

    Why your feature is held up by a migration and why this is actually good.

How AI Models Actually Work ↗

How do these things actual work under the hood? What does it mean to train one? Is it more like going to the gym, studying for a test, or sleeping?

  • What is Machine Learning?

    How computers learn patterns from data: the foundation for everything from stock price prediction to ChatGPT.

  • How do Large Language Models work?

    Breaking down what ChatGPT and others are doing under the hood

  • How do you train an AI model?

    A deep dive into how models like ChatGPT get built.

  • The beginner’s guide to AI model architectures

    Unlike an onion, hopefully these neural network layers won't make you cry.

Working With Data Teams ↗

How to make positive contributions when working with analytics and data science teams.

  • How do product analytics work?

    Product analytics is how teams instrument and analyze data about their product usage.

  • What your data team is using: the analytics stack

    A deep dive into all of the tools that data teams use to do their work.

  • SQL for the rest of us

    If you’re not a data scientist but you have questions, you want to know SQL.

  • What's the Modern Data Stack?

    The new set of tools data teams use to get their jobs done.

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"The product market fit between what you write about (and how you write) and what I want to learn about to become a more technically knowledgeable PM could not be tighter."

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— RB

"I work in private markets investing with an emphasis in technology. You’ve done a great job of succinctly explaining complex concepts in a digestible format."

— Mitchell Brady

"Your breakdowns of technical topics are the best I've seen on the internet, and oddly fun to read."

— Kevin Sullivan

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