Hey Hacker news! I built this Augmented Reality visualization last year to help the students of my [learnprogramming.online](https://learnprogramming.online) course understand how arrays work in programming, mostly with regards to index access. If you're a long time developer, you're probably already used to indices starting at 0 so it was a bit challenging to take a step back and show this for beginners!

It may not run in AR mode, depending on your device. So here's a video of how it works: https://res.cloudinary.com/dbfn5lnvx/video/upload/q_auto/v15...

This is built using WebXR :D