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The Good Signal

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Signals worth following

Browse our latest investigations, impact stories, and evidence-based progress updates.

Science & Technology
•The Good Signal

A quantum computer ran a search without stopping to look

University of Innsbruck, RWTH Aachen, Forschungszentrum Jülich and AQT report in Nature Communications a trapped-ion demonstration of measurement-free universal logical quantum computation: Grover’s search on three logical qubits in the error-detecting [[8,3,2]] color code, no mid-circuit measurements. Experimental success probability 0.40(4), below the classical 0.46.

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Health
•The Good Signal

The US death rate just hit a recorded low

NCHS Vital Statistics Rapid Release no. 44 (2 July 2026) puts the provisional 2025 U.S. age-adjusted death rate at 689.2 per 100,000 — 4.6% below the final 2024 rate of 722.1, covering 3,094,593 deaths and 99.9% of certificates as of 10 May 2026. NCHS calls it the lowest death rate recorded. The file does not compute life expectancy; that 2024 print (79.0 years) is Data Brief 548.

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Health
•The Good Signal

A pathology AI matched FDA-cleared cancer detectors

Vorontsov et al. in Nature Medicine (31 July 2026) trained PRISM2 on 2,350,518 whole-slide images from 685,507 specimens and 200,692 patients, plus 14 million question–answer pairs. Prompt-based inference matches or exceeds (P < 0.05) Paige Prostate, Paige Breast and Paige BLN on their own test sets. Pan-cancer linear-probe AUC 0.967. Not a prospective reader trial.

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Health
•The Good Signal

An ER AI was rated appropriate in 99 of 100 outputs. Doctors still stopped using it.

A Nature Medicine DECIDE-AI stage 1 study at Rambam’s emergency department found SHAKED, a multi-model LLM clinical decision support system, rated appropriate in 99 of 100 sampled outputs, while clinician use fell from 68% to 30% over four weeks. Length of stay did not change. The authors say the result does not justify deployment.

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Science & Technology
•The Good Signal

NASA’s Starling swarm mapped its own orbit without GPS and tightened a 20,000-object catalog

NASA Ames reported on 17 August 2026 that Starling’s FALCON experiment used star-tracker cameras and an onboard catalog of about 20,000 space objects to determine its own orbit without GPS, and in three days improved the known orbits of more than 200 objects.

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Health
•The Good Signal

A liver-scan AI caught 15 cancers doctors had missed

Zhang et al. in Nature Medicine (19 August 2026) trained LiON on 6,443 patients, validated it on 22,251, then ran a single-arm workflow trial on 10,333 consecutive patients. Prospective AUC 0.952 (95% CI 0.942–0.961). AI–human collaboration found 51 previously overlooked lesions, including 15 malignancies. Not a randomised outcomes trial.

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