We Built an Unkillable Network, Then Gave Governments the Kill Switch

Key Takeaways

• •ARPANET (1969) was designed with no central point of failure — built to survive nuclear war
• •Iran's January 2026 blackout lasted 240 hours — 92 million citizens cut off, connectivity dropped to 4%
• •The blackout cost Iran $35-37 million per day in economic losses
• •Internet centralization through ISPs, cloud providers, and DNS has quietly re-created the single points of failure ARPANET was designed to avoid

Timeline

On October 29, 1969, a graduate student at UCLA named Charley Kline sent the first message over ARPANET. He was trying to type 'LOGIN' to a computer at the Stanford Research Institute, 350 miles away. The system crashed after the first two letters. The first message ever sent over what would become the internet was 'LO.'

ARPANET was built by the Department of Defense's Advanced Research Projects Agency — the same DARPA that later funded Shakey the Robot and the Grand Challenge that led to self-driving cars. The network's design was driven by a specific fear: nuclear war. If the Soviet Union destroyed a city, the communications network needed to keep working. The solution was decentralization. No central hub. No single point of failure. Messages would find their own routes through the network, flowing around damage like water around a rock.

This architecture — packet switching, distributed routing, no central control — became the foundation of the internet. Tim Berners-Lee designed the World Wide Web in 1989 with the same philosophy: decentralized, open, no gatekeepers. The internet's founding myth is that it's unkillable.

In January 2026, Iran turned it off.

ARPANET was designed to survive nuclear war. It cannot survive a government bureaucrat with a phone. The architecture is resilient. The politics are not.

For 240 hours — ten full days — the Iranian government reduced internet connectivity across the country to approximately 4%. Ninety-two million citizens were cut off from the global network. The shutdown, triggered during mass protests, was the longest in Iran's history, surpassing the 7-day blackout during fuel price protests in 2019 and the extended shutdowns during the Women, Life, Freedom movement in 2022.

The economic cost was estimated at $35-37 million per day. The human cost — isolation, inability to organize, loss of access to information — is harder to quantify.

How do you turn off a network designed to be unkillable? You control the physical layer.

Decentralization is expensive. Centralization is profitable. The 'unkillable network' was always a myth waiting to be disproven by anyone with enough power over the physical layer.

The internet may be a decentralized protocol, but it runs on centralized infrastructure. Internet Service Providers. Submarine cables. Internet Exchange Points. DNS servers. BGP routing tables. Each of these is a chokepoint. Iran controls its ISPs. When the government orders them to stop routing international traffic, they comply.

This isn't unique to authoritarian regimes. China's Great Firewall, operational since 2003, demonstrates that even the largest internet population in the world can be filtered and controlled. Russia has tested domestic internet disconnection. India has shut off internet access in Kashmir for months.

The centralization of the internet happened gradually and for economic reasons. Running a decentralized network is expensive. Centralized services — cloud providers, CDNs, DNS resolvers — are cheaper, faster, and more reliable. AWS, Cloudflare, and Google handle a disproportionate share of global internet traffic because they're very good at what they do.

But centralization re-creates the single points of failure that ARPANET was designed to eliminate. When Cloudflare goes down, thousands of websites go offline simultaneously. When AWS us-east-1 has an outage, half the internet breaks. We traded resilience for convenience.

Bruce Schneier wrote about Iran's blackout in February 2026, calling the country's development of a two-tiered 'class-based internet' — where government officials maintain access while citizens are cut off — 'dangerous.'

He's right. But the danger isn't new. It's inherent in how the internet evolved.

The founding myth says the internet routes around damage. The reality is that the internet routes around damage when no one is deliberately causing it. Against a determined state actor who controls the physical infrastructure, the network's resilience is irrelevant. You can't route around a government that owns the routers.

ARPANET was designed to survive nuclear war. It cannot survive a bureaucrat with a phone. The architecture is resilient. The politics are not.

We built an unkillable network. Then we centralized it for profit, handed control of the physical layer to governments and corporations, and acted surprised when someone flipped the switch.

The switch was always there. We just chose not to look at it.

How did this make you feel?

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