Evan Armstrong

Evan is the lead writer at Every. He explores power and profit in technology in his twice-weekly Napkin Math column.

Sep 14, 2023

Defense Tech Shouldn’t Be Sexy

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

Nov 13, 2021

Top 12 Creator Platforms—Ranked

Who has the brawn to capture creator’s profit?

Apr 8, 2022

The Futility of Utility

A personal essay

Sep 22, 2022

The AI Writer

How tech is changing what it means to be an author

Jan 5, 2023

It Is Always Time to Build

Interest rates do not equal innovation rates

Jul 27, 2023

Snap’s Probably Screwed (Again)

Maybe Elon should buy it

Jul 2, 2021

In Practice: My Newest Beta Product

Come take an early peak at the future

Sep 8, 2022

What I Learned From Being Cancer Free

Seven Years of Freedom

May 23, 2024

Microsoft’s Boring but Profitable Future

The PC giant is making Windows exciting again

Feb 5, 2021

Revenue: It’s Simple, Until It Isn’t

Finally, a clear explanation of bookings, billings and revenue

Apr 13, 2021

Announcing Napkin Math Fiscal Year 2021

After a short break, Napkin Math returns with a new writer

Apr 15, 2021

COGS: How I Bankrupted MoviePass

An Intuitive Explainer for How To Lose Money and Win Anyway

Apr 22, 2021

Am I getting ripped off writing at Every?

Screenshots of my contract and the financial model I used to decide

Apr 29, 2021

Gross Margin: An Indicator of Market Power

What America's Oldest Jeweler Can Teach Us About the Value of Bling

May 13, 2021

In Defense of WeWork’s Community-Adjusted EBITDA

Clarifying the murky middle ground between Gross Profits and Net Income

May 20, 2021

You Probably Shouldn’t Work at a Startup

It’s overrated—both financially and emotionally

May 28, 2021

ITDA: The Gamification of Financial Statements

How governments and companies are engaged in mutual manipulation

Jun 3, 2021

Product-Led Growth’s Failure

How a Scrappy Utah Software Company Ignored Every Silicon Valley Heuristic and Won Anyway

Jun 17, 2021

Finance is Broken But Don’t Worry, This Has Happened Before

Net Income and the Refactoring of Our Financial Ideology

Jul 9, 2021

Pricing Strategy is Product Strategy

How Technology Enables Companies to Charge More

Jul 16, 2021

How Free to Play Video Games are Forced to Make Addicts

A Case Study on Market Structures and Harm

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

Jul 28, 2021

Twilio’s Second Act

Twilio rode its API to a $66B valuation. Now it’s trying to become the Universal Switchboard for the internet.

Aug 13, 2021

Is Facebook Fixable

A Review of An Ugly Truth