Archive - John Zeratsky

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 •

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

Meet Rebecca Kossnick!!

Jul 23 •

and

Rebecca Kossnick

4:02

My 4 "alternate universe" careers

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

Jul 22 •

Introducing Doctors in Network, a modern logistics platform for surgical staffing

Meet Quinn Wang, MD!!

Jul 21 •

and

3:55

June 2025

This prototype changed how I think about testing AI products

Ben Bauman at HATCH (a Character Capital portfolio company) recently showed me one of the smartest prototypes I’ve ever seen — and I think it’s an…

Jun 28 •

May 2025

April 2025

Freedom of Movement

The best founders engage in this loop

Apr 29 •

Every product is just a hypothesis until you test it

Here's something I believe: Every new product is just a hypothesis until you test it.

Apr 28 •

January 2023

Announcing Character Labs, our new sprint program for pre-seed founders

Two years ago, I teamed up with Eli Blee-Goldman and Jake Knapp to start Character, a new kind of seed fund that supports founders with…

Jan 30, 2023 •

November 2022

Calendar Templates 2.0

How I use Reclaim to automatically make every day my ideal day

Nov 30, 2022 •

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