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Quantum Field Theory
In 2015, Ed Witten, the greatest living string theorist, wrote a piece on why. Here’s the version for everyone. It’s one of the most brilliant, controversial and unproven ideas in […]
Even our scientific heroes can’t be right about everything. Let’s learn the lessons that they never did. In the 1960s, a young theoretical physicist named Stephen Hawking rose to prominence as […]
If the multiverse is real, why hasn’t our Universe, in a sea of infinite possibilities, run into another one at least once? The Universe we inhabit is vast, full of matter […]
If you want to know how we get something from nothing, you’d better understand what we mean! When we look around at our world and Universe today, we talk and think […]
If nothing can escape from beneath the event horizon, where do these phenomena come from? The most important feature of a black hole is that it has an event horizon: a […]
As wonderful as the evidence that supports or invalidates a theory is, it can never truly kill the ones that don’t work out. When it comes to science, we like to […]
Do we need quantum gravity? We sure do… and here’s how we’re trying to get there! Our current best theories describing the Universe, general relativity for gravity, quantum field theory for […]
It’s a fascinating idea, but how does it fare as a scientific theory? “Something is happening here and this is going to have an impact.” –Robert Dijkgraaf, on Verlinde’s work The […]
When matter falls in, black holes grow. But Hawking radiation says that black holes decay. Who wins? “Maybe that is our mistake: maybe there are no particle positions and velocities, but […]
Constant? Not-a-constant? Or is there a fundamental flaw in the way we’re doing business? This article was written by Sabine Hossenfelder. Sabine is a theoretical physicist specialized in quantum gravity […]
If it’s the anti-version of normal matter, could it possibly fall “up”? This article was written by Sabine Hossenfelder of Backreaction. Sabine is a theoretical physicist specialized in quantum gravity and […]
If you heard about time crystals, be aware that they do exist. But learn what they mean. “Every particular in nature, a leaf, a drop, a crystal, a moment of time […]
One of the most famous quantum physicists of all makes his mark in space, 80 years after first predicting it. “What we observe is not nature itself, but nature exposed […]
How a little knowledge can bring about some huge misconceptions… and how to fix it. “Because philosophy arises from awe, a philosopher is bound in his way to be a lover […]
And defeat for new physics. Without something spectacular, there’s no reason to build a bigger collider. “There is nothing new to be discovered in physics now. All that remains is […]
The force of empty space isn’t always zero. Here’s how an electromagnetic experiment might be the key to dark energy. “Another very good test some readers may want to look up… […]