158 | David Wallace on the Arrow of Time

The arrow of time — all the ways in which the past differs from the future — is a fascinating subject because it connects everyday phenomena (memory, aging, cause and effect) to deep questions in physics and philosophy. At its heart is the fact that entropy increases over time, which in turn can be traced to special conditions in the early universe. David Wallace is one of the world's leading philosophers working on the foundations of physics, including space and time as well as quantum mechanics. We talk about how increasing entropy gives rise to the arrow of time, and what it is about the early universe that makes this happen. Then we cannot help but connecting this story to features of the Many-Worlds (Everett) interpretation of quantum mechanics.

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David Wallace received a D.Phil. in Physics and a D.Phil. in Philosophy from Oxford University. He is currently W.A. Mellon Professor of Philosophy of Science, with joint appointments in the Philosophy Department and the Department of History and Philosophy of Science, at the University of Pittsburgh. He is the author of The Emergent Multiverse: Quantum Theory According to the Everett Interpretation. Among his honors are the Lakatos Award for outstanding contribution to the philosophy of science. His most recent book is Philosophy of Physics: A Very Short Introduction.


Jaksot(415)

327 | Cass Sunstein on Liberalism

327 | Cass Sunstein on Liberalism

"Liberalism," divorced from its particular connotations in this or that modern political context, refers broadly to a philosophy of individual rights, liberties, and responsibilities, coupled with res...

1 Syys 20251h 10min

326 | Natalie Batalha on What We Know and Will Learn About Exoplanets

326 | Natalie Batalha on What We Know and Will Learn About Exoplanets

In a relatively short period of time, exoplanets (planets around stars other than our Sun) have gone from an intriguing conjecture to an active field of scientific study, with over 5,000 confirmed dis...

25 Elo 20251h 12min

325 | Alvy Ray Smith on Pixar, Pixels, and the Great Digital Convergence

325 | Alvy Ray Smith on Pixar, Pixels, and the Great Digital Convergence

The world is becoming pixelated. As computers and other digital devices become ubiquitous, human knowledge and communication and information is gradually being converted into, and manipulated as, stri...

18 Elo 20251h 26min

324 | Elizabeth Mynatt on Universities and the Importance of Basic Research

324 | Elizabeth Mynatt on Universities and the Importance of Basic Research

It is not manifestly obvious that universities should be where most scholarly research is performed. One could imagine systems that separated out the tasks of "teaching students" and "generating new k...

11 Elo 20251h 13min

AMA | August 2025

AMA | August 2025

Welcome to the August 2025 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patr...

4 Elo 20253h 39min

323 | Jacob Barandes on Indivisible Stochastic Quantum Mechanics

323 | Jacob Barandes on Indivisible Stochastic Quantum Mechanics

The search for a foundational theory of quantum mechanics that all physicists can agree on remains active. Over the last century a number of contenders have emerged, including Many-Worlds, pilot-wave ...

28 Heinä 20252h 58min

322 | Philip Pettit on Language, Agency, Politics, and Freedom

322 | Philip Pettit on Language, Agency, Politics, and Freedom

When we think of the capacities that distinguish humans from other species, we generally turn to intelligence and its byproducts, including our technological prowess. But our intelligence is highly co...

21 Heinä 20251h 20min

321 | David Tong on Open Questions in Quantum Field Theory

321 | David Tong on Open Questions in Quantum Field Theory

Quantum field theory is the basis for our most successful theories of fundamental physics. And yet, there are things we don't understand about it. Some of these puzzles are relatively well-known, whil...

14 Heinä 20251h 19min

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