Do it right, with real numbers

A small desktop air-quality monitor showing a numeric reading on its display, standing on a light surface indoors.

Science 7 min

Your CO2 monitor's red line is a 19th-century number, and it is drifting

The 1000 ppm line is Pettenkofer's, proposed in the 19th century as a proxy for whether a room smelled stuffy. ASHRAE re...

Nadia Rahim

A sheer cliff face dropping straight to the sea, the land above ending in a clean vertical edge.

AI & ML 6 min

One token can double your bill

OpenAI charges 2x input and 1.5x output on the full request once a prompt passes 272,000 tokens, so the 272,001st token...

A desk calendar open at a month, its dates laid out in a grid of numbered cells.

Developer Tools 6 min

One cron line, three different answers

Ask three tools how often 0 0 */2 * 1 runs in September 2026 and you get two firings, seventeen, or four. Cron switches...

A small glass bowl of loose reddish-brown cocoa powder photographed from above on a plain white surface.

Home & Living 7 min

Two poison services disagree about how much chocolate your dog can eat

Britain's Veterinary Poisons Information Service answers in grams of chocolate per kilo of dog. The ASPCA and Merck line...

Amelia Wong

The exposed mechanism of an old mechanical meter on a black background, showing a numbered counter wheel, a graduated dial and brass gears.

AI & ML 6 min

Two providers charge a toll for your prompt cache. One charges rent.

All three major providers price a cache read at a tenth of normal input, so caching looks like the same deal everywhere....

A white observatory dome on a sandy ridge at night, lit from below, with the Milky Way arching across a deep blue star field above it.

Science 7 min

Leap seconds end on 20 May 2027, and the Earth has already turned around

The committee that has inserted 27 leap seconds since 1972 is proposing to stop, and to let clock time drift up to an ho...

Nadia Rahim

A dense overlapping spread of Indian one-hundred-rupee banknotes filling the frame, the Reserve Bank of India lettering and Gandhi portrait repeating across them.

Finance 7 min

The South Asian number ladder that no two countries share

Lakh and crore are usually presented as one regional system continuing upward into arab and kharab. Take the ladder to f...

Sarah Chew

Red network cables plugged into a handful of ports on a black rack-mounted switch, most of the numbered ports beside them empty.

Developer Tools 7 min

MCP deleted the handshake every tutorial teaches

The Model Context Protocol revision of 28 July 2026 removed the initialize handshake, the session header and the server'...

Gloved hands holding four capped blood collection tubes against a plain pale background, a masked clinician partly visible at the edge of the frame.

Health & Wellness 7 min

The kidney formula in your drug label came from seven data points

The 1976 equation that still decides anticoagulant doses was fitted to seven averaged points, drawn from 249 men after h...

Amelia Wong

Trays of metal letterpress type seen from above, individual raised letter blocks sorted into red compartments, the nearest ones in sharp focus.

Chinese Culture 6 min

The letter Chinese passports will not print

Hanyu Pinyin has a letter no Chinese travel document will print: ü. The rule that replaces it is two rules, not one — 吕...

Eva Chin

A wall-mounted year planner photographed in shallow focus, columns of printed date numbers running down the sheet with several rows blocked out in yellow highlighter.

AI & ML 9 min

One cloud answers with a different model instead of failing

Every hosted model has a date after which it stops answering. Almost everywhere that is an error you can see in your log...