Lars Hansen

News

These are short synthesised notes pulling several recent sources together. Agree, disagree, or have a different angle? Send me feedback →

Quantum computing · 16 September 2026

Fault tolerance moves from theory to engineering reality

A Forrester Research report published in March 2026 declared that quantum computing has entered its fault-tolerant foundation era, marking a shift from counting physical qubits to engineering reliable logical qubits. The conceptual anchor for this transition was Google's Willow processor, which demonstrated that adding more physical qubits to a surface code exponentially reduces the logical error rate — the long-sought below-threshold result that, after nearly 30 years of theory, proved fault-tolerant computation is physically achievable. Complementing surface codes, IBM's 2026 Kookaburra architecture is built around quantum low-density parity-check codes, which promise to encode more logical qubits per physical qubit, while IonQ published a full-stack blueprint in April 2026 outlining a path to 10,000-plus qubits. A September 2026 industry analysis confirmed that two-qubit gate error rates have now dropped below 1 percent across major platforms — a threshold making quantum error correction practically viable — though IBM, whose partners include RIKEN and Oak Ridge National Laboratory, still targets full fault-tolerance by 2029.

Sources: Quantum computing enters fault-tolerant era as security risks accelerate – Intelligent CIO · Quantum Computing Breakthroughs 2026: Real Progress, Market Readiness & What's Next · IonQ Unveils Definitive Blueprint for Fault-Tolerant Quantum Computing · Quantum Computing in 2025–2026: Breakthroughs, Players, and the Road to Fault Tolerance

Neuroscience and mind · 16 September 2026

BCIs enter clinical use as consciousness detection improves

Two converging currents are reshaping neuroscience in 2026: the clinical maturation of brain-computer interfaces and more rigorous tools for detecting consciousness in non-responsive patients. Neurosurgeons completed the first-in-human implant of the Paradromics Connexus wireless BCI in June, adding to a landscape where Neuralink has operated in over a dozen participants for 18-plus months and Synchron holds FDA clearance. Meanwhile, a study published in mid-2026 used a wearable EEG headset with real-time auditory feedback to nearly double the detection rate of covert consciousness in brain-injured patients, raising it from 39 to 69 percent. A companion PMC review, accepted in July, showed that multimodal assessment combining EEG, fMRI, and AI-driven pattern recognition is becoming the standard framework for evaluating residual cognition in disorders of consciousness. Osaka University separately demonstrated a BCI allowing patients to control a robotic hand via decoded neural signals, while work published in Oxford's Neuroscience of Consciousness journal continues to refine the electrophysiological signatures — particularly frontoparietal beta-gamma oscillations — that distinguish conscious from unconscious perception.

Sources: Brain-Computer Interface News and Research Articles – Neuroscience News · Multimodal Assessment of Consciousness with BCIs and AI – PMC · Brain-Computer Interfaces 2026: Neuralink Clinical Reality and the $8–12B Market · Neuroscience of Consciousness, Volume 2026, Issue 1 – Oxford Academic

Spaceflight · 16 September 2026

Artemis II completes lunar flyby, new rockets debut

April 2026 brought the most significant crewed spaceflight in over five decades: NASA's Artemis II launched on 1 April, carrying astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA astronaut Jeremy Hansen on a nearly ten-day voyage that set a record for the greatest distance humans have travelled from Earth, at roughly 700,000 miles. Orion's heat shield and navigation systems performed well, with post-mission analysis confirming readiness for the Artemis III lunar landing demonstration planned for 2027 — when Orion crews will rehearse docking with prototype landers from SpaceX and Blue Origin in low Earth orbit ahead of a first surface landing targeted for early 2028. Elsewhere, 2026 has already seen maiden flights of more than ten new rocket types, including Long March 10B and Ariane 64, and Stoke Space completed structural verification of its Nova Stage 1 for a fully reusable rocket targeting an inaugural launch in early 2027. NASA's Pandora small telescope, launched in January to study exoplanet atmospheres, began science operations in August, while JAXA's Martian Moons eXploration mission is scheduled for October.

Sources: Artemis II – Wikipedia · NASA's Artemis Program – Moon to Mars · 2026 in Spaceflight – Wikipedia · Stoke Space raises $1 billion for fully reusable rockets – Space.com

Climate engineering · 16 September 2026

DAC opportunity costs scrutinised as SRM governance accelerates

A peer-reviewed study published in May 2026 in Communications Sustainability by Boston University researchers cast a sharp light on direct air capture, finding that across nearly every US grid region and every year through 2050, equivalent investment in wind or solar delivers greater combined climate and public-health benefit than DAC — even under highly optimistic technology assumptions. A companion paper in ScienceDirect reinforced the structural constraint: current commercial DAC plants require 1,500 to 3,000 kWh per tonne of CO2, a figure rooted not in engineering immaturity alone but in the fundamental thermodynamics of extracting dilute gas from ambient air. On the solar radiation management side, the UK's Advanced Research and Invention Agency released its initial cohort of 21 grantees studying climate cooling in May, the GAO published a technology spotlight on solar geoengineering governance risks in March, and the Simons Foundation opened a fresh international collaborative funding round with an October 2026 letter-of-intent deadline, signalling that the research community is consolidating around governance frameworks even as no government has committed to deployment.

Sources: Direct air capture has substantial health and climate opportunity costs – Communications Sustainability · The inconvenient truth about direct air capture – ScienceDirect · Science & Tech Spotlight: Solar Geoengineering – U.S. GAO · Solar Radiation Management Collaborative Research Program – Simons Foundation