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Sabine Hossenfelder

@skdh • 220,207 subscribers

German Physicist. Author of "Lost in Math" & "Existential Physics". There is no strength in numbers, have no such misconception. rt's are not endorsements

Shorts

a little discussed CNBC comment on DeepSeek that came out just after the release

a little discussed CNBC comment on DeepSeek that came out just after the release

79,975 Aufrufe

I went flying yesterday and not in an airplane! iFLY UK Indoor Skydiving

I went flying yesterday and not in an airplane! iFLY UK Indoor Skydiving

63,578 Aufrufe

Videos

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I am optimistic that we will one day make contact to extraterrestrials because I don't think that the speed of light is a fundamental limit. Here I explain why and I have a brief summary below.

I am optimistic that we will one day make contact to extraterrestrials because I don't think that the speed of light is a fundamental limit. Here I explain why and I have a brief summary below.

Sabine Hossenfelder

359,746 Aufrufe • vor 15 Tagen

here is the video on the Riemann hypothesis that YouTube took down

here is the video on the Riemann hypothesis that YouTube took down

Sabine Hossenfelder

1,129,829 Aufrufe • vor 1 Monat

It is not every day that I can tell you about a new explanation for the origin of the universe -- and the origin of time itself -- that is not complete bogus. But recently physicists have come up with one that works because it removes the problem of quantum gravity.

It is not every day that I can tell you about a new explanation for the origin of the universe -- and the origin of time itself -- that is not complete bogus. But recently physicists have come up with one that works because it removes the problem of quantum gravity.

Sabine Hossenfelder

113,389 Aufrufe • vor 6 Tagen

String theory didn't just fail, it's far worse.

String theory didn't just fail, it's far worse.

Sabine Hossenfelder

511,727 Aufrufe • vor 1 Monat

Astrophysicists have found evidence of UAPs in old photographic plates. Something seems to have been orbiting around our planet before we had satellites! This finding has been independently confirmed. Still, scientists are afraid to speak out. Beatriz Villarroel Rizwan Virk

Astrophysicists have found evidence of UAPs in old photographic plates. Something seems to have been orbiting around our planet before we had satellites! This finding has been independently confirmed. Still, scientists are afraid to speak out. Beatriz Villarroel Rizwan Virk

Sabine Hossenfelder

470,119 Aufrufe • vor 1 Monat

A group of physicists say they've proved that quantum mechanics can be explained without quantum mechanics. I asked ChatGPT, Grok, and Claude what they think about the paper.

A group of physicists say they've proved that quantum mechanics can be explained without quantum mechanics. I asked ChatGPT, Grok, and Claude what they think about the paper.

Sabine Hossenfelder

92,762 Aufrufe • vor 10 Tagen

A mathematician has come up with a new way to derive all mathematical operations from merely one. I've had a look at the paper.

A mathematician has come up with a new way to derive all mathematical operations from merely one. I've had a look at the paper.

Sabine Hossenfelder

254,509 Aufrufe • vor 1 Monat

8 scientists in the US, involved with classified space-related research have disappeared or died in the recent past. I had a look at what is going on. It is definitely... odd.

8 scientists in the US, involved with classified space-related research have disappeared or died in the recent past. I had a look at what is going on. It is definitely... odd.

Sabine Hossenfelder

219,839 Aufrufe • vor 1 Monat

Is China the new leader in green energy or a record polluter? I have collected the relevant number and think the answer has less to do with being green and clean and all to do with progress.

Is China the new leader in green energy or a record polluter? I have collected the relevant number and think the answer has less to do with being green and clean and all to do with progress.

Sabine Hossenfelder

77,347 Aufrufe • vor 25 Tagen

I've been looking for a four leaf clover my entire life and this is the first time I've found one!!!

I've been looking for a four leaf clover my entire life and this is the first time I've found one!!!

Sabine Hossenfelder

37,314 Aufrufe • vor 14 Tagen

A new experiment shows that virtual particles are actually real.

A new experiment shows that virtual particles are actually real.

Sabine Hossenfelder

43,372 Aufrufe • vor 26 Tagen

A group of astrophysicists has reanalyzed the masses of galaxy clusters and they say that we might not need dark matter after all.

A group of astrophysicists has reanalyzed the masses of galaxy clusters and they say that we might not need dark matter after all.

Sabine Hossenfelder

60,778 Aufrufe • vor 1 Monat

Recent developments strongly suggest that quantum computers are becoming dangerous much faster than expected

Recent developments strongly suggest that quantum computers are becoming dangerous much faster than expected

Sabine Hossenfelder

52,607 Aufrufe • vor 1 Monat

Demis Hassabis about the lack of progress in the foundations of physics

Demis Hassabis about the lack of progress in the foundations of physics

Sabine Hossenfelder

149,966 Aufrufe • vor 5 Monaten

we're building a new species and I don't think we're ready

we're building a new species and I don't think we're ready

Sabine Hossenfelder

247,062 Aufrufe • vor 11 Monaten

This is what happens when a quantum wave-function hits a wall that it does not have enough energy to cross. Part of it goes through anyway. This is the famous "tunnel-effect". A particle without quantum properties cannot do that.

This is what happens when a quantum wave-function hits a wall that it does not have enough energy to cross. Part of it goes through anyway. This is the famous "tunnel-effect". A particle without quantum properties cannot do that.

Sabine Hossenfelder

518,914 Aufrufe • vor 2 Jahren

An increasing number of people believe that they have awakened their AIs to sentience, and that they are communicating with lost or remembered souls.

An increasing number of people believe that they have awakened their AIs to sentience, and that they are communicating with lost or remembered souls.

Sabine Hossenfelder

188,331 Aufrufe • vor 10 Monaten

My brother found a radioactive box in the basement! 😱 The device is from Radiacode, it's a super handy radiation detector that comes with a phone app, I have one, too. (sponsored) Get 5% off with promo code SABINE2026RC at

My brother found a radioactive box in the basement! 😱 The device is from Radiacode, it's a super handy radiation detector that comes with a phone app, I have one, too. (sponsored) Get 5% off with promo code SABINE2026RC at

Sabine Hossenfelder

40,822 Aufrufe • vor 1 Monat

One of Stephen Hawking’s scientifically most influential works was confirmed last week by a strong gravitational wave signal. The signal was detected in January this year by the LIGO/Virgo/Karga collaboration that combines 4 gravitational wave interferometers in the USA, Italy, and Japan. The analysis revealed that the event was a merger of two black holes of roughly 30 solar masses each, and also that of the final black hole. Hawking’s prediction (known as the “black hole area theorem”) was that since the surface area of black holes (which is proportional to the square of the mass) determines their entropy, the total surface area can only increase in a merger. The new observation confirms this beautifully. (Animation: Deborah Ferguson, Derek Davis, Rob Coyne (URI)/University of Rhode Island )

One of Stephen Hawking’s scientifically most influential works was confirmed last week by a strong gravitational wave signal. The signal was detected in January this year by the LIGO/Virgo/Karga collaboration that combines 4 gravitational wave interferometers in the USA, Italy, and Japan. The analysis revealed that the event was a merger of two black holes of roughly 30 solar masses each, and also that of the final black hole. Hawking’s prediction (known as the “black hole area theorem”) was that since the surface area of black holes (which is proportional to the square of the mass) determines their entropy, the total surface area can only increase in a merger. The new observation confirms this beautifully. (Animation: Deborah Ferguson, Derek Davis, Rob Coyne (URI)/University of Rhode Island )

Sabine Hossenfelder

90,710 Aufrufe • vor 8 Monaten

I was quite surprised by this year's physics Nobel Prize.

I was quite surprised by this year's physics Nobel Prize.

Sabine Hossenfelder

52,025 Aufrufe • vor 8 Monaten