Ideas and notes

Essays, research notes and updates from the lab. Mostly software architecture, data and machine learning, and now and then whatever else I couldn't stop thinking about.

• TITLE • CATEGORY • AUTHOR

2026 7 posts

9/30/2026 Life is will to power Philosophy Jørn Otto Hansen → 9/29/2026 What a bike maker's data knew Data Science Jørn Otto Hansen → 9/29/2026 What really decides how much CO2 a car emits? Data Science Jørn Otto Hansen → 9/29/2026 What is Coca-Cola actually worth? Finance Jørn Otto Hansen → 9/29/2026 Which customers actually make you money? Business Jørn Otto Hansen → 9/29/2026 Firi: how a Norwegian crypto exchange won people's trust Fintech Jørn Otto Hansen → 9/29/2026 You are a cash flow Finance Jørn Otto Hansen →

Leben ist Wille zur Macht. Life is will to power. In black capitals on white, next to a black and white portrait of Friedrich Nietzsche with his large moustache

Worm diagrams for North America, South America and Europe. Each dot is one measure, placed by how far it is from its target, and coloured green, orange or red

Chart of fuel use against CO2 emissions, where petrol, diesel and ethanol cars each form their own straight line

Bar chart comparing Coca-Cola's market price of $71.86 with our two valuations of $35.95 and $19.59 per share

A curve that rises as the most profitable customers are added, peaks after 31 customers and then falls as the last 19 customers are added

Diagram of money moving from your bank into Firi and on into crypto, with the fees on each step and the three ways Firi stores crypto underneath

Bar chart of one person's yearly pay from age 25 to 66, split into take-home pay in blue and tax in orange

Life is will to power

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