By Arun Pillai Before we can talk about separating ideas from geography, it is necessary to say what ideas are, what I mean by geography, and what traditions are. I will start with ideas. Ideas Ideas are abstract things, like words and numbers. They don’t occupy space or time. A physical object occupies space and time, and if it is in one place, it cannot be in another (I will ignore the puzzles of quantum mechanics here.) This is not true of ideas. We can all simultaneously entertain the same ideas, or utter the same words, or calculate with the same numbers. (This is partly why the area of intellectual property rights is so tricky.) In any case, there is a fund of ideas that belongs to everyone, like the ideas in the sciences and other areas of culture.