Spencer Greenberg
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Overview
Hi, I’m Spencer! On this website, you’ll find more than 300 essays I’ve written about psychology, philosophy, society, critical thinking, mathematics, and technology.
News
My Social Experiments
For many years, I've thrown social experiments as part of a group I founded, called Ergo. Our rule: we can never repeat the same event format. Once we've used one, it's dead, forcing each event to be experimental. Here are a few of our bizarre/entertainin
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What Do People Who Have Committed Sexual Harassment or Sexual Assault Say About Why They Committed It?
This piece was first written in 2017, and first appeared on my website on July 1, 2026 This is an attempt to find out. This essay is the third in a series examining sexual harassment and assault. The first essay can be read here, which also includes more
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What's Between Us and Reality
We often talk as though we are in direct contact with reality - as though our eyes show us the world, and our minds read off the facts. But between whatever reality fundamentally is and the experience you're having right now, there are a surprising number
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The Mental Models You Don't Know About
I was disheartened to discover how many people either never learned the basic mental models or learned garbled versions of them. As a public service, here's a concise refresher. Which of these did you not already know? Badhart's Law: if a large organizati
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Does Meditation Really Demonstrate There Is No You?
An issue I have with some claims about "nondual" meditation: some meditators say that they achieve a state of non-duality where they see through the "illusion of the self" and then claim something like "there is no self". To be clear, I do believe that so
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