Nuclear engineer / Founder / CEO @ Rather Labs

Field notes on
systems that
must not fail.

Nuclear engineering taught me how systems behave when failure is not an option. These are the notes I keep while applying that to companies, products, and AI.

005 entriesSeries / AllQuery / none

Latest entry07 SEPT 202611 min

Nobody Owns the Joins: Nuclear Data and Why We Built Reactor Atlas

Every authoritative nuclear dataset measures something slightly different, at a different date, under a different definition. Reactor Atlas keeps every reading, publishes the rule that picks the headline figure, and checks the result against what regulators and grid operators publish.

Nuclear
Engineering

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PLATE 01 / N-2862Nuclear

Reactor Atlas share card — the world's nuclear fleet, live, with 400.5 GWe operating across 440 reactors in 32 countries and 87 under construction, plus the top five countries by capacity.

04 SEPT 20264 min

Reactor Atlas: A Nuclear Facility Map of Earth, Across Time

Reactor Atlas is a nuclear facility map of every power and research reactor on Earth, plus the fuel cycle. Scrub history, compare nuclear reactors by country, and follow nuclear news, signals and alerts.

Nuclear
Engineering
AI systems

The core seen up close in cutaway: the flux field incandescent between the control rods entering from above, with the fuel pellet radial section and the axial power curve on the panel beside it.

02 SEPT 202613 min

Criticality: The Physical and Numerical Models

A pressurised water reactor that runs in a browser tab. The physics it solves, the integrator each part gets and why, how the parts are coupled, what the model is for, and where it stops.

Nuclear
Engineering

A branching nervous system drawn as filaments radiating from a bright core, with signals in flight along them.

31 AUG 202611 min

AI-Native Is Not a Chatbot. It Is a Graph That Never Sleeps.

Buying seats for a chat assistant does not make a company AI-native. It takes loops that run around the clock, engineering graphs with humans only at the expensive gates, and a context layer defended the way a containment is. And it changes what the people are there for.

AI systems
Leadership
Entrepreneurship

The Criticality simulator: an isometric 4-loop PWR site with the fuel pellet radial section and the core cutaway open beside it.

29 AUG 20263 min

I Built a Nuclear Power Plant Simulator That Runs in Your Browser

Xenon-135 peaks about nine hours after you shut a reactor down, and until it decays a restart is physically impossible. Criticality is a full 4-loop PWR running at 60 fps in your browser, so you can watch that happen instead of reading it off a whiteboard.