The conversation
Forecasting the Future: Robin Hanson on Overcoming Cognitive Bias
Polymath Robin Hanson discusses the concept of signaling from his book The Elephant in the Brain, revealing why our minds evolved for social competition rather than absolute truth-seeking. He shares his experiences designing a controversial Pentagon prediction market, details his socioeconomic projections for a future run by digital brain emulations ("ems"), and argues that building better institutions requires us to ruthlessly reward truth over performance.
6Degrees
Robin Hanson’s path to becoming one of the most unconventional thinkers in economics began with a love of science fiction.
Robin Hanson
I wanted to understand the universe. Physics seemed like the way to do that.
6Degrees
After earning degrees in physics and philosophy, Hanson worked as a researcher at NASA, where his focus shifted toward artificial intelligence and decision theory.
Robin Hanson
At NASA, I saw how organizations made choices—how information got distorted on its way up the chain. That got me interested in how people actually form and use beliefs.
6Degrees
He soon realized that his questions about belief and bias were, at their core, economic ones.
Robin Hanson
Economics gives you a language for understanding incentives. It lets you see why people say what they say, and why systems behave the way they do.
6Degrees
He returned to academia for a Ph.D. in social science at Caltech, where his advisor was Nobel laureate Vernon Smith.
Robin Hanson
Vernon was deeply experimental. He taught me that if you want to understand behavior, you can’t just assume rationality—you have to measure it.
6Degrees
Hanson’s early work on idea futures—what would later become known as prediction markets—was born from that insight.
Robin Hanson
The basic idea is simple. People bet on what they think will happen. If you let them put money behind their beliefs, you get a more accurate forecast than you would from a committee or a poll.
6Degrees
He argued that markets could aggregate dispersed information better than almost any other mechanism.
Robin Hanson
Prices tell you what people really think, not just what they want you to hear.
6Degrees
That conviction put him at the center of a major policy experiment. In the early 2000s, Hanson helped design a Defense Department–funded Policy Analysis Market that aimed to use prediction markets to anticipate geopolitical events. When the project became public, it triggered a political firestorm.
Robin Hanson
Senators went on TV saying we were going to have people betting on assassinations. The project was canceled within a day.
6Degrees
But the controversy only strengthened his belief in the idea.
Robin Hanson
People misunderstood what we were doing. It wasn’t about gambling—it was about finding truth.
6Degrees
Hanson’s broader research tackles what he calls the social economics of bias.
Robin Hanson
Humans don’t believe things because they’re true. We believe things because they serve social functions—because they make us look good, or loyal, or impressive.
6Degrees
This theme runs through his 2018 book The Elephant in the Brain, coauthored with Kevin Simler.
Robin Hanson
Our minds evolved for social competition. So even when we think we’re being sincere, much of what we do—charity, politics, even love—is about signaling.
6Degrees
He doesn’t see that cynically.
Robin Hanson
It’s not that people are bad. It’s that evolution rewarded behaviors that worked socially, not logically. Once you understand that, you can see the hidden motives everywhere.
6Degrees
The goal, he insists, isn’t to moralize but to understand:
Robin Hanson
We can’t fix bias unless we see it clearly—and that means being honest about our own incentives.
6Degrees
Hanson’s next intellectual frontier is even more radical: the economics of the post-human future. In The Age of Em (2016), he envisions a world where human minds are scanned and uploaded into digital form—creating a society run by ems, or emulated minds.
Robin Hanson
If you take the assumptions of neuroscience and computing seriously, it’s hard to avoid that conclusion. Once brain emulation becomes possible, it changes everything—economics, identity, morality.
6Degrees
He approaches the topic not as a futurist but as a social scientist.
Robin Hanson
I’m not saying it will happen soon. I’m saying, if it does happen, here’s what the world will look like. There will be trillions of ems living in dense virtual cities, working almost nonstop, competing in markets with ultra-high productivity.
6Degrees
For Hanson, it’s a thought experiment with profound implications:
Robin Hanson
Thinking about ems helps us see what really drives civilization—competition, cooperation, and the relentless push to do more with less.
6Degrees
Despite his reputation for bold speculation, Hanson insists his motivation is pragmatic.
Robin Hanson
I’m not trying to be provocative. I’m trying to take our best theories seriously and follow them wherever they lead.
6Degrees
Whether discussing AI, health policy, or social signaling, he returns to a consistent theme: honesty about trade-offs.
Robin Hanson
If you want better systems, you have to reward truth-seeking. Right now, our institutions reward conformity and performance. That’s not sustainable.
6Degrees
Asked what gives him hope, Hanson pauses.
Robin Hanson
Humans have always been messy, biased, status-obsessed creatures. But we also build tools that help us see past ourselves—markets, science, democracy. Those tools aren’t perfect, but they’re the best hope we have.