In part two of my two-part field trip to Livermore, California, I sit down with Inertia Enterprises’ third co-founder — Annie Kritcher, the chief scientist at Inertia and a longtime physicist at Lawrence Livermore National Laboratory.
Annie was the lead designer behind the December 2022 National Ignition Facility (NIF) shot that achieved ignition — a self-heating fusion “burning plasma” that produced more fusion energy out than was delivered to the target. In this episode, Annie walks us through what it took to get there (spoiler: not one magical breakthrough), what “the ignition cliff” actually means, and why Inertia is betting that manufacturing and economics — not brand-new physics — is the fastest path to commercial fusion.