the problem the article mentioned about each core communicating with each other and their respective caches could be a real problem, think of it like a building. anyone ever heard of how in the past buildings where limited to about 10 stories by the stone foundations they used and how it would have to get wider and wider to support estra stories, eventually taking up too much room on the ground floors? sounds like what might happen with cache structure. they can't keep adding cache for cores to communicate, so where to now?