The open map has a very simple data model. It has a list of tags. It has many tutorials. After a year or five of participating in our project you might get an idea you understand OSM from bottom to top. The thing is — you don’t. Never. Even after nine years of writing news, writing code, managing communities, I find something new every day. And I find my beliefs about the project wrong. Let’s see how you can be mistaken in believing you know OpenStreetMap.
