I dropped out of school to help lead support at Airchat. And I am interested in the theory of knowledge.

On this blog, I write about science, philosophy, progress, and optimism. Read my blog posts.

I write an email newsletter every Sunday called Progress Good.

On my podcast, I’ve hosted guests like David Perell, Naval Ravikant, Chiara Marletto, and others.

I occasionally write Critical Rationalism News, a newsletter about our best explanation for what knowledge is and how it grows.

Find me on Airchat @arjun and on Twitter @arjunkhemani.

I’ve met the coolest people due to some work I’ve published on the Internet. Don’t hesitate to reach out.

If you’d like to support my work, buy me a coffee. Thank you for any support.