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Climate impacts of the El Niño–Southern Oscillation on Australia
El Niño–Southern Oscillation (ENSO) profoundly affects Australian weather, climate, ecosystems and socio-economic sectors. This Review presents the progress made in understanding ENSO teleconnections to Australian weather over the past 40 years, describing the atmospheric dynamics, complexities and impacts of this climate phenomenon.
From Big Bang To AI, Unified Dynamics Enables Understanding Of Complex Systems
Experiments reveal that inflation not only smooths the universe but populates it with a specific distribution of initial perturbations, creating a foundation for structure formation. The team measured how quantum fluctuations during inflation are stretched and amplified, transitioning from quantum to classical behavior through a process of decoherence and coarse-graining. This process yields an emergent classical stochastic process, captured by Langevin or Fokker-Planck equations, demonstrating how classical stochastic dynamics can emerge from underlying quantum dynamics. The research highlights that the “initial conditions” for galaxy formation are not arbitrary, but constrained by the Gaussian field generated during inflation, possessing specific correlations. This framework provides a cross-scale narrative, linking microphysics and cosmology to life, brains, culture, and ultimately, artificial intelligence, demonstrating a continuous evolution of dynamics across the universe.
Universe’s Evolution, From Cosmos to Cognition
This research presents a unified, cross-scale narrative of the universe’s evolution, framing cosmology, astrophysics, biology, and artificial intelligence as successive regimes of dynamical systems. Rather than viewing these fields as separate, the work demonstrates how each builds upon the previous, connected by phase transitions, symmetry-breaking events, and attractors, ultimately tracing a continuous chain from the Big Bang to contemporary learning systems. The team illustrates how gravitational instability shapes the cosmic web, leading to star and planet formation, and how geochemical cycles establish stable, long-lived attractors, providing the foundation for life’s emergence as self-maintaining reaction networks. The study emphasizes that the universe is not simply evolving in state, but also in its capacity for description and learning, with each transition.
Tim Gibson: Cryonics in the United Kingdom
Tim Gibson has been involved in cryonics for many years.
How common is Alzheimer’s? Blood-test study holds surprises
A Nature analysis of a major Norwegian study challenges existing estimates of Alzheimer’s prevalence, finding that 25% of people aged 85–89 have dementia with Alzheimer’s pathology — far higher than previous 7–13% estimates — while preclinical Alzheimer’s in younger seniors (70−74) occurs at only 8% versus earlier 22% estimates. Using blood biomarker pTau217 in 11,486 participants, researchers identified that 10% of over-70s had dementia, 10% had mild cognitive impairment, and 10% had preclinical Alzheimer’s, but warn that blood tests alone are insufficient for widespread screening due to potential harm from false positives. The discrepancies highlight how previous studies may have been skewed by selection bias, while demonstrating that blood-based biomarkers require careful interpretation and comprehensive clinical assessment.
A survey of Alzheimer’s disease prevalence in Norway confirms earlier estimates and might show how education level relates to risk.
NASA’s Webb, Curiosity Named in TIME’s Best Inventions Hall of Fame
Two icons of discovery, NASA’s James Webb Space Telescope and NASA’s Curiosity rover, have earned places in TIME’s “Best Inventions Hall of Fame,” which recognizes the 25 groundbreaking inventions of the past quarter century that have had the most global impact, since TIME began its annual Best Inventions list in 2000. The inventions are celebrated in TIME’s December print issue.
“NASA does the impossible every day, and it starts with the visionary science that propels humanity farther than ever before,” said Nicky Fox, associate administrator, Science Mission Directorate, NASA Headquarters in Washington. “Congratulations to the teams who made the world’s great engineering feats, the James Webb Space Telescope and the Mars Curiosity Rover, a reality. Through their work, distant galaxies feel closer, and the red sands of Mars are more familiar, as they expanded and redefined the bounds of human achievement in the cosmos for the benefit of all.”
Decades in the making and operating a million miles from Earth, Webb is the most powerful space telescope ever built, giving humanity breathtaking views of newborn stars, distant galaxies, and even planets orbiting other stars. The new technologies developed to enable Webb’s science goals – from optics to detectors to thermal control systems – now also touch Americans’ everyday lives, improving manufacturing for everything from high-end cameras and contact lenses to advanced semiconductors and inspections of aircraft engine components.