Thank you, this is helpful! 

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If you, dear reader of this comment, have any questions about it or BlueDot Impacts "AI Governance 12-weeks Course" which I will take beginning next week, I'm happy to try to provide answers from a participants perspective.

Thank you very much for the review and aggregation of all these forecasts! Very nice!

I just have one point to add:

As the first aggregate prediction, you mention the AI Impacts’ 2023 survey of machine learning researchers. Your post gives the impression that it produced an aggregate forecast of 50% by 2047 for human-level AI. I think this is at least imprecise, if not incorrect.

AI Impacts asked about the timing of human-level performance by asking some participants about how soon they expect “high-level machine intelligence” (HLMI) and asking others about how soon they expect “full automation of labor” (FAOL). The resulting aggregate forecast gave a 50% chance of HLMI by 2047 and a 50% chance of FAOL by 2116. In your post, you ignore that AI Impacts uses two different concepts for human-level AI and just report the aggregate forecast for HLMI under the headline of human-level AI. 

I think this is unfortunate because this difference matters. One of your main points is that you claim that experts think human-level AI is likely to arrive in your lifetime. However, most of us will probably not be alive in 2116.