The Planet Is Growing a Nervous System

A century ago, a Jesuit paleontologist named Teilhard de Chardin looked at the fossil record and saw a pattern nobody wanted to talk about: evolution keeps building bigger brains, and it keeps building more connection. Cells joined into organisms. Organisms joined into societies. He guessed the trend wouldn't stop with us. Someday, he thought, humanity itself would knit together into a single thinking layer wrapped around the Earth — he called it the noosphere. Mind becoming a planetary phenomenon, the way life once became a planetary phenomenon.

He wrote this before the internet. Before satellites. Before anyone had a word for "network effects." It read like mysticism. It reads a little less like mysticism now.

Robert Wright's new book, The God Test, picks up roughly the same thread from the other end — not fossils, but algorithms. Wright has spent decades arguing that history bends toward larger and larger cooperative structures, non-zero-sum games nesting inside non-zero-sum games, tribes into cities into nations into a wired planet. AI, in this telling, isn't a rupture in that story. It's the next rung. Billions of minds and machines, increasingly fused into something that thinks at a scale no single human ever could.

Whether that counts as good news depends entirely on what kind of nervous system we end up building. A global brain can mean wisdom pooled and amplified — or panic pooled and amplified, a mob with a broadband connection. Teilhard was an optimist about the destination. He believed the whole point of the universe bending toward complexity was that it was also bending toward love. Wright is more careful, more empirical, but he's chasing the same hunch: that connection itself might be the plot of the story, not just the plumbing.

Two very different centuries, converging on the same strange idea — that we were never quite the end product. Just neurons, finding each other.

Distilled from LessWrong