Today we went on a PML walk around Riga (short for Psychogeographical Markup Language). Basically the idea is you get a set of instructions – such as go straight, turn right, send left, first right, repeat – and you let those directions take you around the streets of a city. Then at each stopping point you mark down something that catches your eye and create a map of the city based on places the language takes you around. A bit like a human computer, the experience is meant for you to socially understand computation as a geographical phenomenon. In our case, we managed to find lots of good ice cream stands and used book stores using PML. I guess there’s always a dual purpose for everything!

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