Keith Schacht

I'm a builder, entrepreneur, and investor.

I've started many companies and sold a few. My first was in college; I sold it my junior year and dropped out. My "first love" was Inventables. It opened many doors like speaking at TED and meeting amazing people, and it was a modest success. My biggest success was Mystery Science (YC S17), which sold to Discovery Education. It's the most widely used science curriculum in America (and has hundreds of millions of views on YouTube). My last company was The Explanation Company. We set out to build a browser for kids, had a great founding team, raised $10M from great investors (led by a16z), but I failed to figure out a product that worked.
These days, I'm back in exploring mode, playing with different ideas... Most of my time is spent exploring the capabilities of AI while building an open source alternative to ChatGPT and falling in love with Ruby on Rails all over again:

Ideas that are important to me:

Recent technical articles

Old articles I've written: