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Joseph A di Paolantonio's avatar

Donald, as always your thoughts raise memories and questions.

First, a memory—when working on the Extreme Ultraviolet Explorer, there were two engineers who were deep wells of experience and practical knowledge, and there was one chief mechanical engineer, whose route knowledge, as you say, was from ground based medical equipment, not space flight hardware. All three of them, and the many students, astronomers and engineers, shared survey knowledge, the same or similar coursework, bodies of knowledge, compendium and frameworks. The discussions around material selection and tolerances were… Interesting. These memories from almost 40 years ago are helping me to, or perhaps filtering, my understanding of your thoughts.

For me, what you are writing is not so much about knowledge, but about questioning and learning, about individuals forming communities to make or block decisions. About how we come to have our inherent recognition of cause and effect, regardless of correlation and the arrow of time, and how we form conceptualizations of our place and what surrounds us. It also tells me why I continue to feel that machines don’t learn and our current approaches, even using causal inference, and even if useful, will never lead to artificial intelligence at any level.

Your words are well written; thank you for sharing them.

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Scott Davis's avatar

Ok, this is not a blog post. It is a masterclass worthy of a series of posts or its own book. You've connected so many ideas into a web of useful revelation, I will have to spend a bit of time evey day for a month to contemplate small pieces of this stunningly expansive essay. The only appropriate thing I can add is ... thank you for the gift of pointing out these things and makiing them easier for us to see.

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