Christopher Koopman

🧵 The NRC has been operating an illegal nuclear blockade for 50 years and a recent lawsuit might finally bring it to an end. Buckle up...

@TheAnnaGat Optimism

What is a part of the old internet you'd bring back?

$750k in cash and $50k in Boom stock for the first RC airplane to break the sound barrier: The Boom Prize 👀

Koop is right about how much energy policy is happening at the state level. Absolutely thrilled to see a state policy expert take this role We still have a lot of work to do, but I’m feeling more optimistic every day that we’re lining up the right people to build a bright future

Pumped to have Ryan Norris leading energy policy for us. He's spent years as AFP-Arkansas state director, architecting the Pathway to Zero state income tax elimination plan and driving major economic policy wins in state capitols. Previous generations of energy policy have been hyper-focused at the federal level, but the next generation will be driven in the states. And he's got deep credibility where the policies are actually getting made. The future of energy leadership in America. Welcome to the team, Ryan!

Yeah so that might top 28-3 🤯

This cover art goes so hard. Literally me. Thank you NYT for, once again, making the people you hate seem as cool as possible.

What a success EO 14301 has been. Congrats to everyone involved. Thank you @POTUS @ENERGY Amazing to see an Executive Order work so well.

Very excited to announce that at 12:20am on the 4th of July, Aalo achieved criticality on our first full-scale reactor. We cut it close, but we pulled it off!! Working towards this goal with such an incredible group of humans has been the most fulfilling period of my life. This moment has been three years in the making. Last year, Executive Order 14301 called for at least three new reactors to go critical before July 4th, 2026. As of late last Friday night, that goal has been surpassed! When the EO was announced, we immediately sat down to figure out what the most ambitious scope would be, while still being potentially achievable by July 4th. Some of the team proposed doing simplified designs with smaller fuel loads, or building in existing facilities. One thing was clear: We wouldn't have time to integrate a full-scale sodium heat-removal loop to bring the reactor to its full 30 MWt. So here’s where we landed: ➡️ We purchased the entire commercial-scale fuel load. This is enough fuel to operate at 30 MWt / 10 MWe for 3 years before refueling. To my knowledge, it’s the largest fuel load that’s been taken critical in the DOE pilot program, by far. ➡️ We built a full-scale reactor vessel in our factory, and loaded in our commercial graphite layout. All the dimensions, vessel thickness, and manufacturing techniques are essentially the same as we will use for the imminent commercial version. There will be a few minor tweaks for sodium flow and full-power, but nothing major. ➡️ We built an entirely new reactor facility at the Idaho National Lab. Building a building is easy. Building a new reactor facility comes with a mountain of paperwork, policies, operation and training procedures, security, instrumentation and control, and more. Zero-power criticality might seem like a small step, but I can tell you, going through the exercise of building a reactor and taking it to criticality has been extremely valuable. The learnings on regulatory, ops, manufacturing, supply chain, QA, economics, engineering, and design will accelerate our path through to the final iteration at full-power. America is blessed to have a recent Cambrian explosion of startups in nuclear, all going after different markets, technologies, and strategies. I’m excited that sodium, gas, salt, and new PWRs are all getting pushed forward once again. The best outcome for humanity is to have all these advance in parallel, as quickly as possible, while maintaining safety. Thanks again to our amazing team, DOE, INL, BEA, and everyone else who helped us get to where we are today. This could not have happened anywhere else. Happy birthday, America!! 🇺🇸🇺🇸🇺🇸 There has never been a better time for nuclear energy. The Second Atomic Age has begun, and this one will be here to stay.

July 4th was @valaratomics deadline to reach criticality. Go behind the scenes with us to see how they beat it. TOMORROW, 9AM 🇺🇸

There’s plenty of room on the microreactor bandwagon. ⚛️⚛️⚛️

@senatorshoshana @RWNorse @abundanceinst @zapier

@RWNorse @abundanceinst @zapier holy fuck i cannot wait!!!! DM me what you do with it! im eager now!

GD I am having fun at @abundanceinst. Using the hell out of @Zapier to connect data in ways I never imagined before. AI is so underrated as a data matching tool

If you aren’t listening to @neil_chilson are you even listening at all?

👀

This is absolutely correct. The only way to fight "open" is with "open." Glad to hear a voice in Washington that understands the real stakes.

I have a new op-ed out in @dcexaminer about the longer-term implications of the government restricting access to Mythos 5 / Fable 5 / ChatGPT 5.6. TLDR: We're headed in the wrong direction; there is a better way.

America’s nuclear renaissance is about transforming nuclear power from slow, one-off construction projects into scalable, factory-built reactors. Read more in the thread below. ✏️: @eva_terry02, Deseret News 📸: Isaac Hale, Deseret News

when fable 5 shows back up in claude

Mythos is back

@lukeburgis @majamediaco It has immediately become a major cultural artifact of the 2026 World Cup. That alone probably makes it worth it

@majamediaco the answer is money and a thirst for mystical status

i’m honestly still struggling to make sense of why rick rubin said yes to the polymarket ad. yes, it was an incredible creative video, but it goes against my mental model of who he is. im trying to understand: what series of life events caused him to think that would be a consistent and coherent act with his ethos? is this just a mercenary decision? how do i square this circle, what am i missing in my understanding of the world, polymarket and rick rubin (not particularly interested in arguments legitimising polymarket, my assumed premise is that polymarket as a brand is not consistent with rick rubin’s previously stated ethos)