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skippy1729 said:I agree, either way we have a consistency constraint relating quantum theory and cosmology.
That's sort of the issue I am highlighting. The idea of an accelerating expansion was more or less farfetched until the last 2 decades led to the many new data points that support that. So looking at the subject again, it seems to me that either we will be shocked to learn we can peer into the future, or that something with existing theory is off. So just to recap, it appears to me (lacking an explanation otherwise) that one of these is wrong:
a) The universe is in an accelerating expansion;
b) Every photon emission requires a future photon absorption;
c) There is no way to probe the future location of mass in our vicinity.