Sabine Hossenfelder

After Einstein explained gravity as a consequence of curved spacetime, he tried to explain matter the same way.

What’s missing from a bold new prediction of rapid progress in artificial intelligence.

A new “post-quantum” theory of gravity says we can wave dark matter and dark energy goodbye.

An exciting new theory reconciles gravity and quantum physics. I think it’s wrong. But I may be too.

A better way to secure digital payments.

Ionized air and wires may take headphones to the next level.

A rash of recent articles illustrates a longstanding confusion over the famous term.

Quantum mechanics seems to have a problem with the order of time, which might signal the need for an entirely new type of law.Illustration by Ekaterina Kulaeva / Shutterstock The history of science so far has been a triumph of reductionism. Biology can be reduced to chemistry, chemistry can be reduced to atomic physics, and […]

The question “What is real?” is inescapable if you study quantum mechanics.Photo illustration by Nikk / Flickr Quantum mechanics is more than a century old, but physicists still fight over what it means. Most of the hand wringing and knuckle cracking in their debates goes back to an assumption known as “realism.” This is the […]

I get constantly asked if I could please comment on other people’s theories of everything. That could be Garrett Lisi’s E8 theory or Eric Weinstein’s geometric unity or Stephen Wolfram’s idea that the universe is but a big graph, and so on. Good, then. Let me tell you what I think about this. But I’m […]