Logical Fallacies
/fallaciesA practice quiz for spotting flawed reasoning. Read a statement, name the fallacy, and find out why it breaks — twenty of the usual suspects, from ad hominem to the sunk cost fallacy.
Hebrew Flashcards
/hebrewFlip cards for a few hundred everyday Hebrew words, with transliteration and English. Sorted into essentials, verbs, numbers, time, social phrases and more, so you can drill one category at a time.
Lunar Sleep Analysis
/sleepA year of nightly sleep scores plotted against the phase of the moon, to see whether the full moon really does anything. Sleep score, resting heart rate and duration, broken down by lunar phase.
WhatsApp Guidelines
/commEighteen rules for writing messages people can actually answer. Ask things that can be answered with yes, put the deadline in the question, name the person instead of "someone", and skip the separate "hi".
Berlin Neighborhoods
/hoodsAn interactive map of Berlin's 96 Ortsteile across 12 Bezirke. Tap any neighbourhood to see which district it belongs to, or hit the crosshair to locate the one you're standing in.
Buurt-eetgids
/local-restaurantsA hand-kept list of two dozen places to eat around Maaspoort and along the Maas in 's-Hertogenbosch, on a map and filterable by village, cuisine and price. In Dutch.
Fast Charger Coverage
/charger-coverageHow many Dutch motorway fuel stations also have an EV fast charger. 162 of 239 did — 67.8% — counted from OpenStreetMap in October 2025. A snapshot, not a live figure.
Long Way Lanta
/longwaylantaTwo friends riding two motorbikes from Den Bosch to Koh Lanta — roughly 17,000 km across 18+ countries on Dutch plates. The route on a map, the day-to-day plan, the bikes, and a written record of every decision and why.
Cards
cards.aike.beA card game made of conversation starters — 88 questions and no answers. Pick a deck, then swipe through the cards; each player can take on the question showing or deal themselves a new one.
WiFi QR Codes
aikedejongste.github.io/wifiqrTurns a network name and password into a printable A4 sheet of four WiFi QR cards, ready to cut into A6 and put up so guests can scan their way onto the network instead of typing the password.