Welcome to Phyusion Bio Substack, where we explore what we find most consequential at the intersection of biology, technology, and artificial intelligence. The goal is to cut through the hype and the reflexive cynicism that both distort how we talk about this convergence and to give readers a clearer view of what is actually working and what the unresolved questions look like once you get past the surface.

We hope the essays are useful. Please share them freely and comment as candidly as you like.

Sean Khozin, MD, MPH