A few days ago the value of a single Bitcoin briefly surpassed $100K, a milestone that seemed unimaginable just some years ago. I wonder how durable the ever growing love for Bitcoin is. Let's have a closer look at the mechanisms underpinning the world's most famous cryptocurrency.

Two years ago ChatGPT launched, it popularised AI as tool to create things. Large language models generate text based on prompts, outputting words that are hard to distinguish from being written by a person. The short term benefits are clear, but I suspect many people underestimate the long term costs.

Earlier this week one of my posts on the social network X went viral and attracted 32K views in two days. With no major presence on Elon Musk's platform, and no paid advertising, gaining that kind of attention is something special. Let me explain how this happened.

Last Sunday I completed my first full marathon, covering a distance of 42KM in and around Amsterdam. An idea that started in a bar with some beers and concluded with a finish in the Olympic Stadium. What a journey, what an experience, well worthy of a blog post.

Imagine seeing your dead family members - not just on a picture, but lifelike and in three dimensions! You can almost touch them. It hits you differently, I can assure you. I'm still in awe: I just saw my dead grandfather, lifelike and for the first time ever in three dimensions! This may be Apple Vision Pro's killer feature, if you allow me the pun, please hear me out.

If you're an accomplished developer (as in: you've actually created things in the past), you may recognise this scenario: people reaching out to you, asking you to build something specific. "Can you build X for me?" A fellow technician once urged me to refuse more often: be proud of the things you don't do! Let me explain in this post.

While enjoying my fresh wok lunch in Amsterdam, I noticed something odd: other folks coming in for something to eat ignored the person standing at the counter, preferring to order through a digital kiosk. The crazy thing about this? They are just centimetres apart!

Last Sunday I experienced a breathtaking fusion of legendary rock band MUSE and Amsterdam's iconic Royal Theatre Carré. The band's electrifying sound in the theatre's sophisticated atmosphere proved to be a recipe for an unforgettable night.

This morning I enjoyed my bike ride on a nearly empty bicycle lane, picture perfect rays of sunlight illuminated the dew above the fields around me. Where were all the other cyclists? I suspect it has something to do with popular weather apps. It strikes me how great the control of computers on people's lives already is.

Chances are that you've encountered a CAPTCHA in the wild: they protect web forms by asking you to type over weirdly rendered characters or by asking you to select photos containing a particular thing. Why are they used and is there a user friendly alternative?

Last week I received a very kind invitation from a Belgian artist, to attend her art exhibition in Antwerp. The work on display involved the Snake '97 game that I have created. Uttering to find the right words and thrilled with excitement, I happily accepted the invitation!

Together with my kids I love to explore the world that we think we know as adults. A kid's perspective inspires and surprises! No need to travel half the world for an adventure: Fly planes, catch bad guys, solve problems, build and break stuff - (re)discover the adventure right at your doorstep!

For the past weeks I have been wearing two watches, and boy this is a thing! I love my mechanical watch, but I needed the modern connectivity of a smartwatch. I couldn't choose between them, so I decided to wear both. It's not as bad as you think, let me share some thoughts on my experience.

It's easy to dismiss your phone's notifications as something that disturbs you, something annoying. But if you take the time to set them up correctly, notifications can actually save you time in the long run. Gain more focus by taking control over your online connection to the world. Read along for some tips!

This week I stumbled upon a brilliant report on how people make their purchase decision. For my work on the online food order app I am continuously looking into scientific sources to improve performance, conversion and online revenue. This report by Google discusses six biases influencing decision making. It's worth reading their full report, let me explain why.

This week I sold my car, I now no longer own one. For me, this is something of a change as over the years I owned various sports cars that were like a hobby to me. My discovery of cycling and the birth of my son changed this. But if you're looking for a reason to buy a sports car, read along!

For an exciting new project I have been experimenting with computer vision using TensorFlow. I wanted to achieve realtime human pose detection to drive interactive video projections and games. Time to dive into the world of machine learning, tensors and computer vision!

This month I was lucky enough to attend Global AppSec Amsterdam, an international conference for hackers and security specialists. There were presentations from former intelligence agents, bounty hunters, academics and software vendors. I learned about some of the newest hacking techniques, met with interesting people and played some cool retro games. Read along for more.

Just when the temperature was a low 2° Celsius, I jumped in the Amstel river! While it was nearly freezing outside I went for a swim, just moments after I've taken an ice bath! This post is about the incredible birthday present I got, a workshop involving the Wim Hof Method.

Yesterday a young woman brought me her laptop, it didn't start anymore and it only showed an error message. It turned out to be a broken harddisk. It startled her when I told her that all data on the disk was lost. She told me it contained precious photos of her pregnancy and young child. What could I do?

This week a man brought his laptop to the community centre where I help people with computer problems as volunteer. The old laptop wouldn't start anymore and had to be reinstalled. Instead of Windows, I installed a free operating system. I think it is important to tell you how and why I did it.

Last weekend me and my brother went to Rock Werchter, a multi-day, music festival in Belgium. Over 140 thousand visitors enjoy world famous artists like Pearl Jam, Nick Cave, Artic Monkeys, Noel Gallagher, The Killers and the Queens of the Stone Age. This year I didn't drink alcohol during the festival, leading to some interesting observations...

This month I made my debut as amateur actor. I am no Hollywood star, nor do I envy to become one. But I do like crazy experiments and operating outside of my comfort zone often leads to new and refreshing insights. I took part in an amateur drama play and - in the name of science and fun - strapped myself with sensors to measure what happened to my body.

A good friend of mine had an issue with his Apple Watch, the digital crown lost a rubber ring causing the watch to lose its water resistance. Apple made no problem of it and offered to replace his "device". While it solved his problem, it felt painful to my watch lover's ears. It made me realise the one thing a smartwatch will never have: patina.

About five months ago I got some take away food from our local Asian restaurant. They packaged the food and gave me a plastic bag to carry it home. On my way home I was thinking about the bag. Although it has some nice styling printed on it, it's designed for single use only. What a waste... making me wonder: how long would it last if you would use it on a daily basis?

For a few years now, I commute to work using a bicycle. I have lost more than 15KG since I stopped using my scooter. This week I tested a VanMoof Electrified S, an electric bike with an industrial, minimal design. Is it any good? How does it compare to a normal bike? Will an electric bike make you lazy? Read along to find out!

Last week me and my wife went to Sicily for a little summer holiday. It is the largest island in the Mediterranean Sea. It is an autonomous region of Italy, along with surrounding minor islands. It's home to Europe's largest active volcano: Mount Etna. We had a chance to visit this lava spurring monstrosity and it was quite the experience.

This month I cycled the Fietselfstedentocht, a 235KM tour through Friesland. This tour brings you through various Frisian cities throughout one of the most Northern provinces of the Netherlands. The tour was first organised in 1912 and has grown to become legendary due to its history, challenge and popularity; well worthy of a blog post!

After realising how lucky I am as an healthy, well educated, young man with a solid income, I wanted to do something for other people as volunteer. It just so happens to be that two years ago I received a flyer in my mailbox from the local community center: they were looking for someone with some knowledge of computers. A very interesting journey was about to begin!

Very often I see men carry a wallet filled with plastic: multiple debit and credit cards plus a bunch of loyalty programs and membership cards. Then, some even top it off with stinky paper money and sticky metal coins! It made me wonder if I can free up one pocket by ditching the wallet?