At first you'll enjoy interesting, energetic conversations, but don't be surprised when, over time, it turns out that you don't have a true meeting of the minds after all. In fact, your intellectual connection will provoke increasing irritation in both of you, because the way each of you thinks will get on the other's nerves. Your ideas will set your friend on edge.
They'll see you as far too radical in your thinking. You may in fact be more comfortable with abstractions than they are; they may need more of a reasonable, well-laid-out approach that makes sense in the real world. But you'll begin to see your buddy as a limited and uncreative thinker, since they try so hard to be rational. In truth, you both have significant intellectual strengths, but you'll have a hard time seeing and appreciating them in each other. But that's just what you'll have to learn to do if you want your friendship to be satisfying over the long term.