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First Things First: The Physics of Causality
Why do we remember the past and not the future? Untangling the connections between cause and effect, choice, and entropy.

Can Time Be Saved From Physics?
Philosophers, physicists and neuroscientists discuss how our sense of time’s flow might arise through our interactions with external stimuli—despite suggestions from Einstein's relativity that our perception of the passage of time is an illusion.

A devilish new framework of thermodynamics that focuses on how we observe information could help illuminate our understanding of probability and rewrite quantum theory.

Gravity's Residue
An unusual approach to unifying the laws of physics could solve Hawking's black-hole information paradox—and its predicted gravitational "memory effect" could be picked up by LIGO.

Could Mind Forge the Universe?
Objective reality, and the laws of physics themselves, emerge from our observations, according to a new framework that turns what we think of as fundamental on its head.

September 23, 2019

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Recent Comments

Hi Kate,

Thank for this very nice piece on Peik, and also for pointing out the fun Estling article. Changing constants is indeed an interesting case study on the borderline between 'plausible' and 'implausible' physics. The experimental results are mixed, with some tantalizing evidence from astrophysics facing off against mostly negative evidence from the lab and ground-based measurements. So it is exciting. And the theory side is...mixed. On the one hand, lots of recent thinking...

The fine structure constant earned a mention in this story in the July/August issue of the Skeptical Inquirer. Ralph Estling writes:

"Some physicists have begun challenging long-held shibboleths about the 'constants' of nature, like gravity’s strength, light’s velocity, the ratio between the proton’s mass and that of the electron, and the 'fine-structure constant,' which governs the interaction of light and electrons."

I'm not sure if I agree that some physicists...

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