Yeah, it's pretty awesome. There've been a few stories on this over the last month or two, but the paper just got published a few weeks ago. If it's what they think it is, it might mean being able to get info about what happened before inflation.
So I'm a little confused about that. If they can get information about things beyond the visible horizon of the universe, then it probably would tell something at least about the pre-inflation state, if maybe not pre-inflation-era physics. But the motion is of galaxies relative to the CMB, so my I would have thought it would have to be a post-inflation phenomenon since the CMB was pretty much set in the inflation era.
I think (and I could be wrong) that because the motion is directed, rather than equally distributed, that points to a pre-inflation cause. If it was post-inflation, we would expect the galazy cluster motion to be as randomly distributed as the CMB.
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