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Mathematicians are grappling with the possibility that AI might eclipse them
(www.understandingai.org)
This is a most excellent place for technology news and articles.
This sounds like something you outright made up.
Classical unsolved math problems have rewards.
Mathematics absolutely have peer review:
https://pubmed.ncbi.nlm.nih.gov/28029799/
Indeed peer reviewed exists in mathematics. Now, whether it is common practice to publish stuff on arxiv and leave it there is another thing.
I don't know about mathematics, but I know plenty other Fields where it is common practice to just publish on arxiv.