Featured in Domain Arrivals · 2026-08-15
cat? $dog
An interactive perception experiment asks you to classify the same gradually revealed animal nine times.
Why it surfacedFramed as “a two alternative forced choice with a sample size of one,” the site turns four marks of ink into a small test of visual certainty. Its account of Asirra—the CAPTCHA that asked humans to distinguish cats from dogs—gives the joke a precise technical and historical edge.
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The Two-Tonne Temperature Problem
August 15’s newborn domains include a live-aboard hydrogen airship with a two-tonne lift problem, a Japanese toolbox that explains its assumptions, an advisory-by-advisory Hawaiʻi hurricane archive, and a wedding-gift game about ungrateful poultry.
This is one of 1,000 discoveries in the 2026-08-15 Domain Arrivals issue.