Field notes

Writing from the desk, not from a content calendar.

These notes come out of laboratories and Observatory hours. They assume you already have some analytics installed and still do not trust it.

Laptop open on a wooden desk near a window

March 2026 · 14 min

Why D7 retention misreads Thai consumer apps

A seven-day window assumes weekly grocery cadence. Plenty of Thai apps earn their keep on payday, festival, or school-term rhythms. Redrawing the window is measurement, not vanity — if you document the rhythm you chose.

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Hands writing in a notebook beside a laptop

January 2026 · 11 min

Event names that survive a reorg

When product, growth, and a new CDP team all invent checkout_ok, the warehouse becomes folklore. A naming scheme is not bureaucracy if it is the only way a future PM can find the truth.

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Small plant growing from coins suggesting expansion

November 2025 · 9 min

Expansion metrics without vanity MRR

List-price lifts dressed up as net expansion will survive one board cycle. Seat depth and post-conversion feature adoption survive the second.

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Workshop sticky notes on a glass wall

August 2025 · 12 min

Instrumentation debt at Series A

214 live events and no owners is not “being data driven.” It is a liability that compounds every sprint. Here is how we triage without a six-month freeze.

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