Monthly Archives: January 2023

Police brutality – Unique to the USA?

It has been impossible to ignore the cases of severe police brutality from departments all over the USA. Any reasonable person would wonder, after reading about this for the second, third, or even fourth time in the same year, why US police departments do not learn from previous examples. After all, how hard can it be? Continue reading →


In de recente pers werd melding gemaakt van een gerechtelijke dwaling in de zaak Jaitsen Singh, de Nederlander die al tientallen jaren vastzit in de USA. En, zoals het er al lang naar uitziet, voor iets dat hij niet gedaan heeft. Een grove gerechtelijke dwaling derhalve!

Helaas is zijn geval niet uniek, hij is niet de enige nederlander die onschuldig vastzit of vast gezeten heeft. Bovendien geldt hetzelfde voor gevangenen in andere landen dan de USA, en met andere nationaliteiten dan de Nederlandse. Continue reading →


After a recent contribution by fellow columnist Eef, suddenly a lot of articles in the Dutch and Swedish press about this AI were published – did they read Eef’s column? As usual with the presentation of any new AI, the articles vary from handy tools for the curious, via a new don’t-have-to-do-any-more-homework trick for students, to the latest threat for AI to take over our jobs and ultimately the world.

Finally, I got curious and decided I had to try the thang for myself. Continue reading →

Domestic terroristm

When I wrote about terrorists a few weeks ago, I only briefly mentioned the domestic variety of terrorists or terrorism. According to trusty old Wikipedia, domestic terrorism can be simplest described as:

Domestic terrorism or homegrown terrorism is a form of terrorism in which victims “within a country are targeted by a perpetrator with the same citizenship” as the victims.

At the same time, Wikipedia mentions that there is no universally accepted definition of this phenomenon, leaving it to each country to set its own definition. Continue reading →

Mathematical issues

Some remarkable mathematical issues

Although the Dutch newspapers Volkskrant and NRC can be blamed for being too political (D66) biased to be independent as journals ought to be, it must be said that both have excellent science sections.
On an irregular base even topics of mathematical nature have been published.

Of course for a layman’s audience, mathematics lacks the ability of other science disciplines of being easily visualized.
So the topics in these sections were about trivial stuff like the latest calculated decimals of π or some large regions on the number line without any prime number called prime deserts, a newly found Mersenne number, etc.
But that hardly scratches the surface. Continue reading →