Theory of everything: do we really need one?

What’s the difference between a living collection of matter, such as a tortoise, and an inanimate lump of it, such as a rock? They are, after all, both just made up of non-living atoms. The truth is, we don’t really know yet. Life seems to just somehow emerge from non-living part ...  Show more

It is hard to shake the intuition that there's a real and objective physical world out there. If I see an umbrella on top of a shelf, I assume you do too. And if I don't look at the umbrella, I expect it to remain there as long as nobody steals it. But the theory of quantum mecha ...  Show more

Quantum mechanics and general relativity are two of the most successful theories of science ever, but they don't necessarily fit together. Learn why physicists are trying so hard to discover a quantum theory of gravity, and why it's been such a challenge.

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Synthesizing relativity and quantum theory would be the crowning achievement of science, a profound merging of all the forces of nature into one beautiful, magnificent equation to unlock the deepest mysteries in science. In this episode, Michael Shermer speaks with professor of t ...  Show more

Can a whole universe fit inside a black hole? Neil deGrasse Tyson and Paul Mecurio explore grand unification, dark matter, wave function collapse, and other problems in physics with theoretical physicist and author of “Existential Physics,” Sabine Hossenfelder. 

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Melvyn Bragg examines 20th century physics’ quest for the ultimate theory of everything. Einstein left us with his theory of General Relativity, which explained how gravity works on the scale of stars, galaxies, and the universe itself and Schroedinger left us with the equation t ...  Show more