Ever since I heard that our solar system is hypothesized to be surrounded by a massive spherical cloud of trillions of comets extending a good way to our nearest star (if that was exaggerated, let me know), I've been wondering whether or not this Oort Cloud may provide us 'some' protection from gamma ray bursts? My reasoning is simply that the beams of gamma ray bursts are typically, if I'm not mistaken, relatively 'narrow' (using the term 'narrow' loosely, of course), and thus might have 'some' difficulty making it through such a cloud without losing some of its energy 'striking' comets that are in its path.
In other words, could the Oort Cloud help to, for lack of a better term, weaken any potentially life-ending gamma ray bursts that unfortunately are aimed straight for us? I'm just talking in principle here; obviously there would have to be multiple comets in the path of the beam for this to be even remotely helpful, and it clearly would not work every time, but given the supposed size of the cloud, it seems plausible that it could dampen it to some degree, at least in theory.
Anyone have any opinions?