
Sean Carroll's Interviews
Without a sense of time, leading us from cradle to grave, our lives would make little sense. But on the most fundamental level, physicists aren't sure whether the sort of time we experience exists at all. We talk to three experts and find out if time could potentially be moving backwards as well as forwards. Featurin
Michael Tomasello on The Social Origins of Cognition and Agency
Human beings have developed wondrous capacities to take in information about the world, mull it over, think about a suite of future implications, and decide on a course of action based on those deliberations. These abilities developed over evolutionary history for a variety of reasons and under a number of different pr
There are few human impulses more primal than the desire for explanations. We have expectations concerning what happens, and when what we experience differs from those expectations, we want to know the reason why. There are obvious philosophy questions here: What is an explanation? Do explanations bottom out, or go for
Andrew Strominger on Quantum Gravity and the Real World
Quantum gravity research is inspired by experiment — all of the experimental data that supports quantum mechanics, and supports general relativity — but it’s only inspiration, not detailed guidance. So it’s easy to “do research on quantum gravity” and get lost in a world of toy models and mathematical abstraction. Toda
Understanding the Biggest Ideas in the Universe Without Being a Physicist
This week we welcome back theoretical physicist and philosopher Sean Carroll to talk about how his most recent book, The Biggest Ideas in the Universe: Space, Time, and Motion, attempts to bridge the gap between how scientists talk about physics and how they usually go about explaining it to non-scientists. The goal is
John Allen Paulos on Numbers, Narratives, and Numeracy
People have a complicated relationship to mathematics. We all use it in our everyday lives, from calculating a tip at a restaurant to estimating the probability of some future event. But many people find the subject intimidating, if not off-putting. John Allen Paulos has long been working to make mathematics more appro
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