20 October, 2025
I've been working on a new, free travel app called Freedam. The idea is that in four categories, I try to tell a few stories that to me represent the liberty this city has carried for many centuries.
02 September, 2024
The Dutch approach to drugs has shown great promise for harm reduction, but it has also shielded problems with drug crime from public view — until now.
20 April, 2023
The internet has been so transformed by social media, paid platforms and content marketing, that people often ignore what the function of a website can be: that of a web-app that does exactly for you what you need it to do.
05 April, 2023
A list of where you can watch all episodes of Cosmos: A Personal Voyage by Carl Sagan - for free - on the internet.
29 March, 2023
A short little book I'm publishing about the history of this botanical buddy.
28 March, 2023
Our food forest in Klarenbeek sits on the edge of a real and developed forest.
28 February, 2023
An ongoing project that tries to size up Tesla Energy
02 February, 2023
If your is mainly to help the Ukrainian army win against Russia, where should you send your money?
21 November, 2022
The promises of crypto, bitcoin and Web3 have always sounded interesting but the core question remains: when will the added value of decentralization actually outweigh the inherent costs of decentralization?