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New research puts age of universe at 26.7 billion years, nearly twice as old as previously believed
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 ≈ 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