It's not even a paper, it's just a manuscript on the arXiv, yet to pass peer review, if indeed it ever will. I had a quick skim of the manuscript, and remain s

It's not even a paper, it's just a manuscript on the arXiv, yet to pass peer review, if indeed it ever will. I had a quick skim of the manuscript, and remain skeptical... a bunch of it doesn't even seem to make sense: If it does occur in Nature, eternal inflation has profound implications. Any type of event that has nonzero probability will happen infinitely many times, usually in widely separated regions that remain forever outside of causal contact. This undermines the basis for probabilistic predictions of local experiments. If infinitely many observers throughout the universe win the lottery, on what grounds can one still claim that winning the lottery is unlikely? To be sure, there are also infinitely many observers who do not win, but in what sense are there more of them? In local experiments such as playing the lottery, we have clear rules for making predictions and testing theories. But if the universe is eternally inflating, we no longer know why these rules work.