Upon further reflection, I have an "end to humanity" to postulate:
I think that once our current civilzation descends into the absolute horrors of debauchery we will, with our own perverse mental forces working in concert, bring about a rift in the warp, sucking us all into the eternal void and unleashing the horrors of Tzeentch, Slaanesh, Nurgle, and Khorn upon the multiverse as never seen before.
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