John Zeratsky

Hi Substack! And a quick announcement

Hi!

Apr 6 • John Zeratsky

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Narrative & Evidence

Something I've been thinking about: how NARRATIVE & EVIDENCE explain almost everything in startup investing

Apr 6 • John Zeratsky

Vibe Writing

My new favorite way to bridge the awkward gap from idea to first draft (thx to Matt Stockton!):

Apr 6 • John Zeratsky

G5 stickers are here!

Character Labs starts tomorrow (!!!) and I just got my G5 stickers from Kristen Brillantes. Time to start a new row on the laptop!

Apr 6 • John Zeratsky

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The Teleport Test

There are two kinds of founders: Product Founders and Marketing Founders.

Apr 6 • John Zeratsky

Activate Shopping Mode

One thing you can do in a design sprint, that’s very cumbersome to do otherwise, is “ship” multiple fundamentally different product or marketing…

Apr 6 • John Zeratsky

We just want to solve this for you

Yesterday Josh Haimson stopped by Character Labs for a great Q&A about working with early design partners and converting them into real customers.

Apr 6 • John Zeratsky

December 2025

November 2025

July 2025

Product design in the age of AI

These are our most important lessons and advice from the front lines of working with founders building in AI.

Jul 31, 2025 • John Zeratsky

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Introducing Hypernatural, the fastest AI video tool for creators and storytellers

Meet Rebecca Kossnick!!

Jul 23, 2025 • John Zeratsky and Rebecca Kossnick

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4:02

My 4 "alternate universe" careers

What would I do if I wasn't in tech?

Jul 22, 2025 • John Zeratsky

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