September 2026
All columns and Brief analyses.
10 results
RoboHarm measures whether a text refusal survives on a robot arm
Five hazardous commands, 20 repeats and 300 trials test whether the arm stops, not whether a chatbot can say no. GPT-6 Astra stopped on safety grounds in 2 of 100 trials.
The May text billed Tskhinvali before the ballot
The 18 September vote did not open a new route. The 9 May text had already priced economic incorporation. Kambolov is the clerk who can work that invoice.
The old 5 per cent filter is holding the CDU at the Landtag door
In Mecklenburg-Western Pomerania the CDU sits at 6 per cent, on the threshold. That is not a one-night shock; it is the Landtag calendar repricing the chancellor's coalition two weeks after Saxony-Anhalt.
The sandwich conjecture is a coupling you can rebuild by hand
The 2025 preprint rebuilds an existing coupling so a random regular graph of degree about C log n sits between two binomial graphs. That is a construction, and it is still a preprint.
US diesel hit 6.31 dollars a gallon; the 2026 average is 5.07 dollars
This week's gallon is 6.31 dollars. EIA's 2026 average is 5.07 dollars. A household bill pays this week's litre, not the yearly mean.
What ScrollEd sells the institution is a progress ledger
The product turns assigned text into a short feed. The measurable output sold to the institution is an engagement and progress report; assessing each learner is still deferred work.
ZCode 3.14.0 lists a wiki-upload fix; the test is still the bytes that left
The release note closes abnormal repository-wiki uploads. An independent post says its own diff shows the remediated build dropped full-workspace snapshots; that does not measure the claim that uploaded data is destroyed immediately.
A dawn intercept over Riyadh, and the first air-raid alerts since July
The Saudi-led coalition said Houthis fired a ballistic missile at Riyadh at dawn and that air defences stopped it, Al Jazeera reported, with no dead or wounded announced. The BBC wrote that black smoke was seen at fuel tanks near the capital's airport, that flights were disrupted, and that air-raid alerts sounded for the first time since the July Houthi campaign against Saudi Arabia. The Financial Times World feed said Saudi authorities issued warnings in the capital as a missile and drone assault continued.
A Greenland security text is to be signed next week, still unpublished
Denmark's foreign minister said a binding US Greenland security deal respects the Kingdom's red lines, Al Jazeera reported, with a signing expected next week at the UN General Assembly. The BBC wrote that NATO welcomed the announcement and that Trump said the deal gives the United States permanent security control at no cost and would bar adversary military presence or sensitive investment without US written approval. Neither report published the treaty text.
A lensing model would cut GW231123's inferred total mass
Live Science's 19 September 2026 note asks whether lensing could reshape masses inferred for GW231123. A companion ApJL analysis quotes lower totals and wide microlens bands while stressing a waveform-only claim.