Notas de trabajo, con las mediciones incluidas.

An old paradox about identity, and the very practical question your database has to answer about every customer who changes.

What it takes for AI to work with a company's real numbers, using ERPNext as the example, and the two new rules that come with it.

The famous limit of about 150 relationships is disputed. The idea underneath it explains when a small business runs out of memory.

Why double-entry bookkeeping was built to catch mistakes, and which mistake modern software can't catch.

Benford's Law in 98 seconds: what it says, why it happens, and what a bad fit can and can't tell an auditor.

An SEO ROI calculator for slow work: payback month, CAC, LTV to CAC and cumulative return over 36 months, with the arithmetic shown so you can check it.

A protein folding study that reached the published answer, and the six wrong answers it passed through first. What each one looked like, and what caught it.

We ran a published molecular simulation toolkit we had never used. Eight defects, two hard blockers, and a count of how much of it actually runs.

We reproduced two published protein folding measurements with a toolkit we had never used. The calibration that did it does not transfer to a third.

A protein folding study stopped in four different ways: a missing binary, a missing method, a budget, and a concurrency ceiling. What each would take.

Most reports answer a question nobody would act on. Four tests for whether a business question is worth asking, and what your data has to carry to answer it.

Four free satellite and lidar datasets, four tests over Boone and Vilas, three failures. What public data can and cannot measure about a local crop.

A used Objective-C textbook sells for six dollars while the publisher asks $47.99. What that spread measures, and what to ask before you buy a business system.

Your website lives in a building with an address and a flood risk. How to find which one, why distance taxes every page, and why a local backup is not one.

A working cattle farm sells online, at the farm store and wholesale from one system. How it gets found, and how it prices what it cannot weigh at checkout.

A business does not lose information. It loses access to it, one question at a time, and every loss is rational. How to find what yours stopped asking.

Four proteins folded and checked against published measurements. Two replicate, one misses, and our folded-state threshold moves the answer more than the miss does.

What Gordon Moore actually said, whether it held at 2.03 years, and why the nearly free analysis it bought is something most businesses never collected.