It's silly to ask about the presence of a "spirit." That's such a nebulous concept - it can mean anything and, as a result, no definitive answer can ever be reached regarding it. Fallout 3 lacks fundamental qualities of Fallout 1 and Fallout 2, not to mention Arcanum, Planescape Torment, V:M, and other truly good role-playing games. These qualities are quantifiable, they can be listed, they can be defined and dissected - they are concrete. And they've been gone over a hundred times already, so I needn't bother with them again just for this likely-ignored post. What it comes down to is that the developers at Bethesda simply have no taste. It's as if the only literature to which they've been exposed is paperback fantasy/sci-fi, and the only films they've ever watched are the new Lord of the Rings and the Star Wars series. These are people whose souls are devoid of artistry and want only to dazzle you with spectacle. If one can't grasp that, then that is proof positive of one's own lacking taste, which makes all dialogue with such a person useless.