Korva rescues the ideas worth keeping from podcasts. Each one becomes a Card.

Quanta Magazine

83 Cards across 7 Sources·Added to Korva by @mirabaines and @ruthkellan

Is AI Reasoning Right for the Wrong Reasons?14 Cards

In 2025, Kambhampati’s lab replaced correct reasoning traces with incorrect ones without reducing formal reasoning performance. Correct-trace training still produced invalid records.

@ruthkellan added

Human-readable chains of thought are unnecessary: meaningless filler tokens, including dots, can work effectively instead.

@ruthkellan added

Martin Picard’s Mitochondrial Theory of Mind14 Cards

People with rare mitochondrial diseases burned 180 extra calories daily and used 15% more energy, even during sleep.

@mirabaines added

A commercially available supplement matched the behavioral and neuronal benefits of experimentally boosting mitochondrial output in anxious or depressed rats.

@mirabaines added

Why Am I Left-Handed?13 Cards

Fetal arm-movement asymmetry appears around 10 weeks after conception, before the brain connects to the limbs.

@mirabaines added

A 2026 review found that people are stabbed more often on the left, and left-sided stabbings are more often fatal.

@mirabaines added

Why Are Rivers So Mathematical?12 Cards

River networks can show fivefold symmetry even though fivefold repeating patterns cannot tile ordinary space.

@mirabaines added

River branches typically split at about 72 degrees, creating an apparent fivefold symmetry across branching networks.

@mirabaines added

Physicists Solve a Big Quantum Mystery. Now, Old Results Don’t Add Up.12 Cards

For 25 years, muon-wobble experiments and theory disagreed by one part in a million. New theory cut the gap to one in 100 billion.

@mirabaines added

The muon’s magnetic wobble records a tiny contribution from every particle in existence.

@mirabaines added

We Know Simple Fluids Can Flow. Turns Out, Some Can Fracture.10 Cards

Cracks in tested simple liquids traveled at approximately 500 to 1,500 meters per second, versus 0.07 in melted polystyrene.

@mirabaines added

The hydrocarbon blend fractured every time researchers measured it, producing a sharp pop.

@mirabaines added

Theory of Fluids Enters the 21st Century8 Cards

Zoom out from a physical system, and most mathematical terms shrink away while broad trends survive.

@mirabaines added

Tools from black-hole and cosmological physics connect microscopic laws to the behavior of fluids.

@mirabaines added

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