this post was submitted on 13 Jul 2023
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This seems to be using the initial red shift data that has been shown to be wrong with none being over 15. The initial redshift of z โ 16.4 was actually 4.9 after spectroscopic verification. This study had only 2 over 10 with the max of 11.4.
source: https://arxiv.org/abs/2303.15431