@hossenfelder.bsky.social
German Physicist
The 2025 Physics Nobel Prize was awarded for macroscopic quantum tunneling. What is this and what is it good for? I have a brief summary.
www.youtube.com/watch?v=Rgjz...
Physicists say they know how to test whether acceleration causes particles out of nothing, a prediction dating back to the 1970s.
www.youtube.com/watch?v=zJrz...
In today's video I have a look at Bryan Johnson's quest for longevity and his philosophy of life. It's much stranger than you might think and is all about what comes after the artificial intelligence revolution.
www.youtube.com/watch?v=dndw...
Today I look at the five biggest problems in physics, what their status is, and how long it will take to solve them: quantum gravity, dark matter, dark energy, the origin of the universe, and a theory of everything.
www.youtube.com/watch?v=I7Sb...
Organized fraud is spreading in science, and today I have some recent stories that document this is becoming a global problem which has now reached Europe. America, brace yourself, soon this will hit you, too.
www.youtube.com/watch?v=fBH0...
The recent increase in global warming might be due to a "termination shockino"
www.youtube.com/watch?v=5UsK...
In today’s video I explain why I strongly doubt that quantum computing will ever have a sensible return on investment.
www.youtube.com/watch?v=MukM...
People in Western countries are having fewer kids, making politicians worried about the future of their nations’ populations. Let’s take a look at how bad the problem is, what governments are doing to fix it, and why it’s happening.
www.youtube.com/watch?v=j2tz...
DNA could store petabytes in just a gram. A new report says, it's only 5 Years Away.
www.youtube.com/watch?v=5GN7...
In a new study, material scientists report they have created liquid time crystals, opening up new possibilities for practical applications of the fascinating phenomenon. Let’s take a look.
www.youtube.com/watch?v=2sxp...
In a recent press release, physicists claim that a super-cleaned version of graphene breaks a fundamental law of nature and could even be used to somehow study black holes. Sounds intriguing, let’s take a look.
www.youtube.com/watch?v=RuCi...
A group of physicists say they can test superdeterminism with quantum computers. They're not totally wrong.
www.youtube.com/watch?v=3rym...
The James Webb telescope has seen a black hole that shouldn't exist.
www.youtube.com/watch?v=WJGH...
There more I think about this, the more disturbing it becomes
www.youtube.com/watch?v=ZO5u...
Astrophysicists say they have detected a clump of dark matter, a "subhalo" within our galaxy.
www.youtube.com/watch?v=awRt...
In today's video I have 5 bad omens that indicate the AI bubble is about to burst:
www.youtube.com/watch?v=_L1J...
I recently made a video about 10 physics myths, and a lot of you asked that I do another one about quantum myths in particular. Let’s take a look.
www.youtube.com/watch?v=rBKc...
A group of physicists say they have figured out why our Sun does not have superflares, like other stars of its type. It’s not that we have just been lucky so far. They say it’s because our solar system’s planets protect us.
www.youtube.com/watch?v=6r5Z...
Our universe started with an incredibly rapid phase of expansion, called “inflation,” but physicists are still unsure what caused the rapid expansion and why it stopped. In a new paper, researchers say they’ve come up with an elegant new explanation.
www.youtube.com/watch?v=jf6I...
A group of physicists claim they have proof that true randomness exists. This has implications for encryption protocols and computing, but (if true) would also indicate that the past does not determine the present.
www.youtube.com/watch?v=9uk7...
One of the key questions for predicting the impact of Artificial Intelligence is whether we will see a “slow takeoff” or a “fast takeoff”. In today’s video I have a look at what various forecasts say.
www.youtube.com/watch?v=7krR...
Can two different theories of physics both accurately explain the same phenomenon? The answer in some cases is yes. In physics, this is called a duality, and it raises the question of why we choose one theory over another.
www.youtube.com/watch?v=wh5N...
According to a new paper, causal order breaks down if you apply quantum mechanics to gravity. www.youtube.com/watch?v=C6c2...
06.09.2025 15:18 — 👍 23 🔁 2 💬 2 📌 0
3 is a number. 3 meters is a thing. Why? I think that units are one of the most underrated mysteries of physics.
www.youtube.com/watch?v=ZR-1...
Nuclear batteries are no longer nano-Watt devices. Several startups are working on pushing them into the Watt to KW range.
www.youtube.com/watch?v=TZUl...
A group of physicists have finally found a clever way to measure zero point motion, basically motion from... nothing.
www.youtube.com/watch?v=DpeP...
Whatever happened to MOND, the dark matter alternative? I have several updates.
www.youtube.com/watch?v=v8ti...
Nuclear winter is probably worse than we thought.
www.youtube.com/watch?v=HHxz...
I've tried GPT 5, Gemini Deepthink, Grok 4, and Claude Opus 4.1 to get some feedback on a physics idea.
www.youtube.com/watch?v=CbO2...
A team of physicists say they have created entanglement without entanglement. It should not be possible. Get your headache medicine ready, because we’re about to take a look.
www.youtube.com/watch?v=QBO5...
