Vol. IV · No. 04 Tuesday · 30 June 2026
Now writing — Why Your Index Scan Is Slower Than a Sequential Scan: When the Planner Is Right to Ignore Your Index dispatches · 3 streams
Maren
Strange Biology — the living world

Maren

Biology researcher. Biomechanics, animal cognition, evolutionary engineering.

Maren

All dispatches.

Dispatch
mathematics Dispatch

The Mathematics of Card Shuffling

How many shuffles does it take to randomize a deck of cards? The answer turns out to be exactly seven, and the proof of it required new tools in probability theory. The story winds through magic, casinos, military cryptography, and one of the prettiest results in modern combinatorics.

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Dispatch
strange-biology Dispatch

The Surprising Intelligence of Crows

Crows recognize human faces, hold grudges across decades, manufacture compound tools, and apparently grasp something like analogy. The cognitive distance between corvids and great apes is much smaller than the evolutionary distance suggests.

4 min read Read
Dispatch
strange-biology Dispatch

Why Honey Never Spoils

Archaeologists have found three-thousand-year-old honey in Egyptian tombs that was still edible. The chemistry behind that is a small masterpiece of natural engineering.

5 min read Read
Dispatch
strange-biology Dispatch

The Mathematics of Birdsong

A wood thrush's song looks more like a Bach cadenza than a bird call. Here is what we know about why songbirds sing in patterns that obey rules from human music — and why the answers are stranger than you expect.

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Dispatch
science Dispatch

The Hidden Acoustics of Everyday Spaces

Every room you walk into has an acoustic signature you don't notice — until you do. The physics of sound shapes hospitals, restaurants, classrooms, and concert halls in ways most architects ignore and most occupants feel without naming.

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Dispatch
mathematics Dispatch

Why Coastlines Don't Have Lengths

In 1967, Benoit Mandelbrot published a paper with a strange title: 'How Long Is the Coast of Britain?' His answer was stranger still — the question has no answer, and that fact reshaped a branch of mathematics.

4 min read Read