You’ve probably felt it. That creeping sensation every time your phone drops to one bar of 5G, and suddenly your “smart” device becomes a very expensive, very dumb piece of glass. We were promised freedom. We got a leash.
Back in 1972, John G. Kemeny—the co-creator of BASIC and then-president of Dartmouth—wrote a book called Man and the Computer. He had a terminal in his office and his home, connected to the Dartmouth Time-Sharing System. He looked at this setup and made a wild, utopian prediction: the future of home computing wouldn’t be about isolated machines. It would be about terminals.
We were so obsessed with owning the hardware that we completely missed the fact that the network was always going to own us.
For a while, it looked like Kemeny was wrong. The 1980s and 90s brought the Personal Computer revolution. We decentralized. We democratized. We bought beige boxes with local hard drives and felt like digital pioneers, masters of our own data. The mainframe was dead; long live the standalone PC.
But history is a circle, and technology is its fastest spinning wheel.
Look at your smartphone right now. Strip away the sleek marketing. What is it, really? It’s a thin client. A terminal. It has almost no local processing power that actually matters. Your photos are in the cloud. Your messages are routed through central servers. Your AI assistants are just a UI layer for a massive, centrally managed data center.
The PC revolution wasn’t a victory of the individual; it was just a 40-year detour on the way back to the mainframe.
We traded our standalone, autonomous machines for the convenience of being always-on. We thought we were extending our minds, but we were actually just plugging our brains into a central grid that someone else controls. Kemeny’s “terminal” wasn’t a failure of imagination. It was a prophecy.
This tension between centralization and decentralization isn’t just history—it’s the exact battlefield of the AI era. Who owns the models? Who owns the data? We are repeating the 1970s, building massive, time-sharing AI systems that our phones will merely query.
Every time you ask a cloud AI to write your emails, you are living out a 1972 dream of a networked terminal, only without the utopian optimism.
We wanted personal empowerment. We got a digital tenancy. The network has reasserted itself, and this time, it’s not letting go.
FAQ
Q: Wasn't the PC revolution necessary for computing to become mainstream?
A: Yes, but it was a transitional phase. It trained us to use computers, but the true scale of computing always required centralization. We just didn't have the bandwidth in 1985 to make Kemeny's terminal vision a reality.
Q: What's the practical implication of this cycle?
A: Stop expecting your local devices to save you from outages. Your hardware is just a window. If you care about data control, you need to focus on network-level encryption and local-first software, not buying a faster phone.
Q: Does this mean decentralized computing (like crypto/Web3) is doomed?
A: Not doomed, but it’s fighting gravity. Centralization is more efficient. Decentralization only wins when trust in the center completely breaks down—and even then, usually only temporarily.