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Here’s How We’ll Know an AI Is Conscious
An AI’s answer to this question can reveal its inner life—or lack thereof.
The Math That Takes Newton Into the Quantum World
How a math professor learned to stop worrying and love algebraic geometry.
How the Universe Remembers Information
A “memory matrix” might solve Stephen Hawking’s black-hole paradox.
What Dark Matter Needs Are New Kinds of Experiments
After 30 years and no results, it’s time to support more entrepreneurial physicists.
Watch and See: The Medium Really Is the Message
How communication technologies shaped the arts and sciences.
Why We Stink at Tackling Climate Change
Global threats result from human culture outrunning human biology.
How to Get Close to a Black Hole
Want to understand the most mysterious object in the universe? Make one at home.
Why Misinformation Is About Who You Trust, Not What You Think
Two philosophers of science diagnose our age of fake news.