I'll take the "under" on 30 years. Demis Hassabis (who has more credibility than whoever these 3 people are combined) says 5-10 years: https://time.com/7277608/demis-hassabis-interview-time100-20...
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~2030 is also roughly the Metaculus community consensus: https://www.metaculus.com/questions/5121/date-of-artificial-...