I like building physical things. Coming from a computer programming background it was hard for me to wrap my head around this. It all changed when I moved to a farm house in Romania, and I had to renovate it. Not with my own hands, I did delegate most of the work, but I still had to understand everything that was involved and coordinate the whole project. Now I look differently whenever I see a building - I try to understand the materials it is made from, the challenges involved.
My house restauration project slowly turned into something bigger than that. Read more about the whole project here.