I would argue that he was not visionary in this way. He did, it is true, encourage a blending of these two cultures, but I do not believe the he did so out of idealism. Instead, I would argue that Alexander tried to combine the two cultures for very pragmatic reasons. He did so because he thought that it would make his empire easier to rule. He felt that the people he conquered would be more likely to accept Greek rule if he did not simply try to impose Greek ways on them. This may have been a visionary thing to do, but it was done out of a desire for power, not out of some idealistic dream of creating an ideal society.