Co-founder of One Month. Faculty at Columbia Business School. I write about startups, technology, and philosophy.


38 Stories by Mattan Griffel

How to Learn Ruby on Rails

Ruby on Rails is a coding framework that allows you to build websites quickly. In this short blog post I’d like to answer: Why...
1 min read

Y Combinator and The One Metric that Matters

It’s been a little while since I’ve written about growth hacking and I wanted to write about my experience with growth hacking since going...
2 min read