PM Notebook

Essays by Patrick McGrath

Writing

24 essays since 2022

AI & Tech

I Built Alexandria for My AI Agents

I got tired of re-teaching the same patterns to every AI agent on every project, so I built Alexandria: a shared memory my agents learn from.

14 min read

Gaming

Arc Raiders and the Prisoner’s Dilemma

Embark Studios built the prisoner’s dilemma into an extraction shooter. Every squad encounter is a live experiment in trust and betrayal.

15 min read

AI & Tech

2026 Predictions: AI Goes Local

Desktop agents, prediction markets in your news feed, and the AI stories that won’t land. My 2026 calls, split into signal and noise.

24 min read

AI & Tech

The Bottleneck Is the Point

Your brain processes 10 bits per second. AI handles millions of tokens. The human context window is the constraint nobody designs around.

21 min read

AI & Tech

Every Wall Between Prompts and AI Teams

I spent six months building AI agent teams and screwed up most of it. The five levels of agent maturity, and why skipping ahead costs more.

13 min read

Crypto & Web3

Bear vs Bull: Base (Coinbase L2)

Base pulled $2.4B in net inflows on Coinbase’s name. I dig into whether developer adoption matches the hype or it’s another subsidized ghost chain.

24 min read

Gaming

TL;DR: How Telegram Games Actually Work

Hamster Kombat hit 300 million users inside a messaging app. Here’s how Telegram games actually work and why developers are betting big.

10 min read

AI & Tech

2025 Predictions: Crypto, AI, and Gaming

Predictions for 2025 across work, AI, crypto, gaming and biotech: AGI, meme coins, a Solana ETF, Base, GTA 6 and sovereign Bitcoin reserves.

14 min read

Macro & Markets

America’s Debt Crisis: The Financial Abyss

America’s federal debt surged 50% in five years to $34.1 trillion. The interest payment crisis, the zero-rate hangover, and what it means for the economy.

8 min read

Crypto & Web3

Bear vs Bull: Solana

A concise teardown of the Solana Blockchain, exploring the Bear and Bull case.

11 min read

Crypto & Web3

Bear vs Bull: Polygon

Polygon bear vs bull analysis: evaluating MATIC as an Ethereum Layer 2 for gaming and DeFi, from scalability wins to competitive threats in the L2 landscape.

7 min read

Gaming

Tl;dr Tokens in Gaming

Notes from a Pocket Gamer Connects Seattle panel: governance, utility and NFT tokens in games, with a verdict on each.

10 min read

Macro & Markets

Macro Monday: Web3 and the Supply Chain

How the global supply chain got here, what’s changing, and why Web3 games could give workers in developing economies a well-paid kind of digital work.

8 min read

Product Management

Understanding Users: A short book list

Product management books on behavioral economics and user psychology, from Thinking Fast and Slow to Predictably Irrational. A curated PM reading list.

6 min read

Product Management

Foundations of a PM

Where the product manager role came from, starting with a 1931 memo, and what makes someone good at the job today.

6 min read

Gaming

Crypto games to look out for in 2022 pt. 2

Crypto games to watch in 2022, part 2: Mines of Dalarnia, Ember Sword, Sunflower Farmers, Aurory, and how blockchain enables true digital scarcity.

13 min read

Gaming

Crypto games to look out for in 2022 pt. 1

Crypto games worth watching in 2022: Star Atlas, DeRace, Thetan Arena, Gods Unchained and Splinterlands, plus Dawn Protocol for esports.

14 min read