I have a finite Erdős Number

I was browsing some old XKCD comics the other day when I stumbled upon one I couldn't really place, as I had not actually heard of Paul Erdős before.

Well, that's a problem that Wikipedia can easily solve. As I started reading up on Erdős Numbers, I noticed the Compute your Erdős Number page at the Erdős Number Project.

And lo and behold: Marc van Kreveld is listed in the list of all authors with EN ≤ 2. So, because the subject of my masters thesis got presented by him at the 3rd International Conference on GeoComputation in Bristol, I guess my Erdős Number is three. Hence the recent Twitter announcement.