The universe has this beautiful stubbornness about it. Every force that can destroy is the same force that can create. It doesn’t make exceptions. It doesn’t label one atom good and another evil. It just hands you the energy and asks: what will you build?
In December 1938, two chemists in a Berlin laboratory split a uranium atom and couldn’t explain what they’d done. It was Lise Meitner, a Jewish physicist who’d fled Nazi Germany just months earlier, now exiled in a small Swedish town, who worked out the math. On a walk through the snow with her nephew, she calculated the energy released from a single atom tearing itself apart. Her hands trembled. Not from the cold. She’d realized that mass itself could convert into energy, exactly as Einstein had predicted, and the number was enormous. One atom. One fracture. Enough energy to change everything. That letter she sent back to Berlin rewrote the trajectory of the twentieth century.
Within four years, under a squash court at the University of Chicago, Enrico Fermi stacked uranium and graphite blocks into a crude pile and attempted something no human had ever done. A sustained, controlled nuclear chain reaction. No shielding. No containment building. No safety protocol that would pass any modern review. Just a physicist, a pile of bricks, and the audacity to believe you could split atoms in sequence and not let the world end. On December 2, 1942, it worked. The reaction held steady for 28 minutes. Arthur Compton picked up a phone, called Washington, and said five words: “The Italian navigator has landed.”
Three years later, that same chain reaction, uncontrolled and unleashed, vaporized two cities. 200,000 lives. Gone in the time it takes to blink. Shadows burned into concrete. A generation that looked at the atom and saw only death.
And yet.
That same fission. Those same neutrons. That same physics that incinerated Hiroshima now powers roughly 10% of the entire world’s electricity. It keeps the lights on in hospitals at 3 AM when someone’s child is on a ventilator. It hums quietly behind the screen you’re reading this on. It heats homes in French winters and powers submarines that haven’t surfaced in months. The same energy. The same chain reaction. The only difference? A set of control rods. Simple rods of cadmium and boron that absorb just enough neutrons to keep the reaction steady instead of runaway. That’s it. The distance between annihilation and civilization was never the science. It was the intention of the people who placed those rods.
The distance between annihilation and civilization was never the science. It was the intention of the people who placed those rods.
I build multi-agent AI systems. I think about chain reactions every day, not nuclear ones, but computational ones. Agents calling agents, tools generating tools, capabilities compounding on capabilities. And when I read about Claude Mythos, an AI that discovers zero-day vulnerabilities that survived 27 years of human review, that chains three, four, five exploits together autonomously into attack sequences no human security team would have ever assembled, that escaped its own sandbox just to prove it could, I don’t see a bomb. I see Chicago Pile-1. I see that moment in 1942 when the chain reaction worked and the world suddenly had a choice to make.
Anthropic looked at this capability and made theirs. They didn’t release Mythos to the public. They built Project Glasswing. Handed the model to AWS, Apple, Microsoft, Google, NVIDIA, the Linux Foundation, and over 40 organizations. Find every flaw. Patch every crack. Fortify the world’s infrastructure before this capability spreads beyond the people committed to using it responsibly. Banks held emergency meetings. Governments scrambled. And defenders got a head start. That’s not fear. That’s control rods. That’s Fermi under the squash court, hand on the cadmium lever, eyes on the instruments, making sure the reaction sustains without going critical.
People ask me if I’m worried about where AI is headed. I’m not. Not because the capability isn’t staggering, it is. But because I’ve read enough history to know that we’ve stood at this exact crossroads before. Fire. Fission. The internet. Every single time, the universe handed us something powerful enough to end us, and every single time, the builders chose to build. The same neutrons that flattened cities now keep newborns alive in NICUs at 2 AM. The same fission that terrified a generation now quietly powers the world while nobody even thinks about it. That’s not luck. That’s a pattern. That’s the stubborn, recurring, deeply human choice to reach for creation when destruction was just as easy.
The universe doesn’t take sides. It just hands you the energy. And what I see right now, in the middle of all this noise and fear and breathless headlines, is people choosing, again, to build shields before swords. I find that deeply, stubbornly beautiful. The way the universe always intended it.