Napkin Math

Profit and power in technology.

Jul 21, 2022

Crypto Has A Use Case

How Braintrust Used Tokens to Kickstart a Market

Aug 25, 2020

The Quest for Monopoly

A history of stock market exchanges: from fragmentation to monopoly, monopoly to fragmentation and back again.

Jul 18, 2024

A New Book of the Startup Bible

It’s the rare business book that you should actually read

Sep 14, 2023

Defense Tech Shouldn’t Be Sexy

Weapons are a necessary evil, not a hype-y consumer product

Apr 20, 2023

You Probably Shouldn’t Work at a Startup

It’s overrated—both financially and emotionally

Sep 15, 2022

When Creation Goes To Zero

Skynet Who?

Jul 15, 2022

Has Venture Lost Its Soul?

A Book Review of The Power Law

Apr 16, 2024

Distribution Is King

What video games can teach us about building billion-dollar companies

Nov 16, 2023

COGS: How I Bankrupted MoviePass

An intuitive explainer for how to lose money and win anyway

Oct 27, 2022

Venture Capital Is Ripe for Disruption

A world where a billion is a drop in the bucket

Jan 26, 2023

How Technology Giants Die

GE, Amazon, and the flywheel of death

Nov 12, 2020

Cash Conversion Cycle: Bridging the Gap Between Profitability & Cash Flow

What is the Cash Conversion Cycle and why is it useful? In this post, we discuss the Cash Conversion Cycle formula, an example calculation, and a comparison of public retailer IPOs.

Mar 10, 2022

How To Get Leverage On Your Ideas

The Power Output Equation

Sep 4, 2020

The Investment Opportunity in School Bus Operators

Many schools have closed, representing a unique opportunity to buy school bus operators. With a strong moat, now might be the right time to buy.

Dec 14, 2023

Want to Build? Technical Excellence Won’t Be Enough.

This new era of startups requires a founder baptized in the humanities

Nov 22, 2022

6 New Theories About AI

Software with superpowers

Jul 22, 2021

Snowflake: How a Revenue Retention Behemoth was Built

TL;DRThis is the second post on a deep dive in GTM metrics with a focus today on Revenue RetentionSnowflake is a software Dracula. It latche

May 18, 2023

Meet Your New Finance Intern: GPT-4

How AI will reshape what finance professionals do

Feb 9, 2023

The Meditations of Vinyl Jesus

Music producer Rick Rubin explores the creative process

Apr 27, 2023

Death of a Flywheel

How Amazon and Berkshire got too big

Dec 15, 2022

Should You Fire This Newsletter?

In which I analyze whether I’m good at my job

Dec 5, 2023

Death of a Flywheel

Amazon and Berkshire Hathaway got really big. Here’s why it might kill them.

Sep 9, 2021

Tech stocks’ favorite lie to investors

How the LTV/CAC ratio is manipulated to take advantage of retail investors

Dec 21, 2022

Meditations on AI Mecca

A dispatch from a hacker conference in San Francisco