
From First Principles
A weekly podcast breaking down science news so you don't need a PhD to get it.

From First Principles
A weekly podcast breaking down science news so you don't need a PhD to get it.

From First Principles
A weekly podcast breaking down science news so you don't need a PhD to get it.
Featured Research
mHC: Manifold-Constrained Hyper-Connections
Episode 21
mHC stabilizes Hyper-Connections by constraining residual mixing onto a manifold that restores identity-like signal flow, enabling more reliable large-scale training with modest overhead.
Large Language Models
Neural Network Architecture
Deep Learning
AI

arXiv.org
Jan 5, 2026
mHC: Manifold-Constrained Hyper-Connections
Episode 21
mHC stabilizes Hyper-Connections by constraining residual mixing onto a manifold that restores identity-like signal flow, enabling more reliable large-scale training with modest overhead.
Large Language Models
Neural Network Architecture
Deep Learning
AI

arXiv.org
Jan 5, 2026
mHC: Manifold-Constrained Hyper-Connections
Episode 21
mHC stabilizes Hyper-Connections by constraining residual mixing onto a manifold that restores identity-like signal flow, enabling more reliable large-scale training with modest overhead.
Large Language Models
Neural Network Architecture
Deep Learning
AI

arXiv.org
Jan 5, 2026
mHC: Manifold-Constrained Hyper-Connections
Episode 21
mHC stabilizes Hyper-Connections by constraining residual mixing onto a manifold that restores identity-like signal flow, enabling more reliable large-scale training with modest overhead.
Large Language Models
Neural Network Architecture
Deep Learning
AI

arXiv.org
Jan 5, 2026
Strict Universality of the Square-Root Law in Price Impact across Stocks: A Complete Survey of the Tokyo Stock Exchange
Episode 21
Using complete account-level trading data across all liquid TSE stocks over eight years, the authors find the market-impact exponent is statistically consistent with 1/2 at both stock and trader levels—strong evidence for strict universality of the square-root law.
Statistical Physics
Market Microstructure
Quantitative Finance
Econophysics

Physical Review Letters
Dec 15, 2025
Strict Universality of the Square-Root Law in Price Impact across Stocks: A Complete Survey of the Tokyo Stock Exchange
Episode 21
Using complete account-level trading data across all liquid TSE stocks over eight years, the authors find the market-impact exponent is statistically consistent with 1/2 at both stock and trader levels—strong evidence for strict universality of the square-root law.
Statistical Physics
Market Microstructure
Quantitative Finance
Econophysics

Physical Review Letters
Dec 15, 2025
Strict Universality of the Square-Root Law in Price Impact across Stocks: A Complete Survey of the Tokyo Stock Exchange
Episode 21
Using complete account-level trading data across all liquid TSE stocks over eight years, the authors find the market-impact exponent is statistically consistent with 1/2 at both stock and trader levels—strong evidence for strict universality of the square-root law.
Statistical Physics
Market Microstructure
Quantitative Finance
Econophysics

Physical Review Letters
Dec 15, 2025
Strict Universality of the Square-Root Law in Price Impact across Stocks: A Complete Survey of the Tokyo Stock Exchange
Episode 21
Using complete account-level trading data across all liquid TSE stocks over eight years, the authors find the market-impact exponent is statistically consistent with 1/2 at both stock and trader levels—strong evidence for strict universality of the square-root law.
Statistical Physics
Market Microstructure
Quantitative Finance
Econophysics

Physical Review Letters
Dec 15, 2025
An unfinished Pompeian construction site reveals ancient Roman building technology
Episode 21
Pompeii evidence shows Romans "hot-mixed" quicklime with dry pozzolan, creating lime clasts that later feed crack-healing chemistry—explaining the durability of Roman concrete.
Materials Durability
Archaeology
Cement Chemistry
Roman Concrete

Nature Communications
Dec 9, 2025
An unfinished Pompeian construction site reveals ancient Roman building technology
Episode 21
Pompeii evidence shows Romans "hot-mixed" quicklime with dry pozzolan, creating lime clasts that later feed crack-healing chemistry—explaining the durability of Roman concrete.
Materials Durability
Archaeology
Cement Chemistry
Roman Concrete

Nature Communications
Dec 9, 2025
An unfinished Pompeian construction site reveals ancient Roman building technology
Episode 21
Pompeii evidence shows Romans "hot-mixed" quicklime with dry pozzolan, creating lime clasts that later feed crack-healing chemistry—explaining the durability of Roman concrete.
Materials Durability
Archaeology
Cement Chemistry
Roman Concrete

Nature Communications
Dec 9, 2025
An unfinished Pompeian construction site reveals ancient Roman building technology
Episode 21
Pompeii evidence shows Romans "hot-mixed" quicklime with dry pozzolan, creating lime clasts that later feed crack-healing chemistry—explaining the durability of Roman concrete.
Materials Durability
Archaeology
Cement Chemistry
Roman Concrete

Nature Communications
Dec 9, 2025
Building compositional tasks with shared neural subspaces
Episode 21
The study shows that monkeys flexibly switch tasks by reusing shared, low-dimensional "neural subspaces" for sensory features and actions, composing them differently depending on the current task.
Decision-Making
Representation Learning
Cognition
Neuroscience

Nature
Nov 26, 2025
Building compositional tasks with shared neural subspaces
Episode 21
The study shows that monkeys flexibly switch tasks by reusing shared, low-dimensional "neural subspaces" for sensory features and actions, composing them differently depending on the current task.
Decision-Making
Representation Learning
Cognition
Neuroscience

Nature
Nov 26, 2025
Building compositional tasks with shared neural subspaces
Episode 21
The study shows that monkeys flexibly switch tasks by reusing shared, low-dimensional "neural subspaces" for sensory features and actions, composing them differently depending on the current task.
Decision-Making
Representation Learning
Cognition
Neuroscience

Nature
Nov 26, 2025
Building compositional tasks with shared neural subspaces
Episode 21
The study shows that monkeys flexibly switch tasks by reusing shared, low-dimensional "neural subspaces" for sensory features and actions, composing them differently depending on the current task.
Decision-Making
Representation Learning
Cognition
Neuroscience

Nature
Nov 26, 2025
NASA's New Radar Just Pulled Off Something Impossible on Earth
Episode 3
Europa Clipper used a Mars flyby to prove its REASON ice-penetrating radar works in space—bringing in 60 GB of echoes and de-risking the instrument before Europa science in the 2030 timeframe.
Planetary Science
Europa / Ocean Worlds
Planetary Radar
Space Missions

SciTechDaily
Aug 4, 2025
NASA's New Radar Just Pulled Off Something Impossible on Earth
Episode 3
Europa Clipper used a Mars flyby to prove its REASON ice-penetrating radar works in space—bringing in 60 GB of echoes and de-risking the instrument before Europa science in the 2030 timeframe.
Planetary Science
Europa / Ocean Worlds
Planetary Radar
Space Missions

SciTechDaily
Aug 4, 2025
NASA's New Radar Just Pulled Off Something Impossible on Earth
Episode 3
Europa Clipper used a Mars flyby to prove its REASON ice-penetrating radar works in space—bringing in 60 GB of echoes and de-risking the instrument before Europa science in the 2030 timeframe.
Planetary Science
Europa / Ocean Worlds
Planetary Radar
Space Missions

SciTechDaily
Aug 4, 2025
NASA's New Radar Just Pulled Off Something Impossible on Earth
Episode 3
Europa Clipper used a Mars flyby to prove its REASON ice-penetrating radar works in space—bringing in 60 GB of echoes and de-risking the instrument before Europa science in the 2030 timeframe.
Planetary Science
Europa / Ocean Worlds
Planetary Radar
Space Missions

SciTechDaily
Aug 4, 2025




