Terence Tao - "AI tools are like taking a helicopter to drop you off at the site. You miss all the benefits of the journey itself. You just get right to the destination, which actually was only just a part of the value of solving these problems."
Judit Polgar - "I always felt that intuition is very important in chess, but I get my intuition through my experience. And many times I think that this is the biggest danger for youth, that they don't have the experience because they don't spend enough time doing."
Elites from two different fields voice the same opinion.
[1] https://t.co/XRDSSPjpQ8
[2] https://t.co/fQzPT3D3f4
The worst unit is decibel: It isn't even a unit, isn't defined consistently across fields, hides an arbitrary reference scale and is named after Alexander Bell but spelled 'bel'
I remember a Damascene moment as a student when Weinberg’s EFT message sank in. Crazy renormalization issues became obvious and sensible. It also completely opened up a unified framework for understanding physics.
Caswell and LePage had a similar effect for nonrelativistic problems and Polchinski’s EFT of the Fermi surface did a similar thing for for me for condensed matter.
Look at this astronaut's face during reentry, knowing the capsule exterior is at 5,000°F.
The physics of why he's alive are wild.
The air in front of the capsule compresses so violently at Mach 25 that it turns into plasma. 5,000°F on the surface. Half the temperature of the sun. The heat shield absorbs that energy by literally burning itself away, layer by layer, carrying the heat with it as gas.
One inch of material is the entire margin. On the outside of that inch: 5,000°F. On the inside: 75°F. Room temperature. The thermal gradient across that single inch is the steepest temperature drop humans have ever engineered.
The orange glow in the window is ionized nitrogen and oxygen. That plasma is why comms go black for six minutes during reentry. Ground control can't reach the crew. The astronauts are alone inside a fireball, falling at 25,000 mph, watching the laws of thermodynamics keep them alive through a 1-inch wall.
Artemis II did exactly this last night. Four astronauts hit Earth's atmosphere at 24,664 mph, rode a 4,900°F plasma sheath for six minutes of radio silence, and splashed down a mile from target.
The heat shield is now being inspected for cracks. They found over 100 on the last unmanned test.
Edward Witten on the mass gap in strong interactions. (An excerpt from his 2009 paper "The Problem of Gauge Theory", which is available on the net.) #physics#QuantumTheory
At the smallest scales, the laws of physics appear to change. Physicist Astrid Eichhorn thinks this process eventually comes to an end.
https://t.co/vKlCG7B7cw
A calculation shows how the one-point energy correlator flows between its two extremal values corresponding to the quark and hadron degrees of freedom https://t.co/JVsdMBoDXR #OpenAccess