We pick up from last week's episode with the next speaker. Kara Lamb followed Andrew Sicree; her research is about the atmosphere and climate. She mostly talked about climate, and got a ways into specifics about her research on black carbon soot in the atmosphere. She did stop to draw a parallel between Laudato Si and Pacem in Terris, that in both cases the Popes stopped to address humanity at large and not just the Church.
Juan Martin Maldacena was after her, and was presented the St. Albert Award. You don't schedule Juan Maldacena and not have him talk about his own physics research; he is famous for research on workable forms of string theory in anti-de Sitter space and some results on the shape and nature of black holes. His talk was very technical and rather hard to summarize, but an intriguing aspect of it was the recurring notion that black hole singularities and the original singularity of the Big Bang might have a lot in common.
Sunday morning after Mass Michael Dennin led off with a talk structured around a book called "The Big Picture" by somebody I think I've heard of but don't know why named Sean Carroll. In this book Carroll apparently divides reality into "poetic naturalism", where "poetic" means "stories we tell ourselves about large complicated objects" and "naturalism" means "quantum physics, which is actually reality". Dennin made four points:
Craig Lent, a professor at Notre Dame, went next and gave an interesting talk that interfaced with others. He actually seemed to conflict with Barr in that he commented early on that the "state vector," which had be be the wavefunction since it had the same Greek letter psi for its symbol, contained all the information possible to have about a system and not just one observer's (the concept Barr used). He also addresses the measurement problem, but my note broke off mid-sentence. He went on to summarize the content of Scarani's talk, that Bell inequality experiments all show that the universe is not deterministic. He then addresses the claim that while atom-scale particles show quantum indeterminism, larger stuff does not, and nerves are enough larger that the human brain must be deterministic. That's probably not true; even 10,000 atomic mass unit molecules like neural transmitters show quantum behavior in experiments. We are left again with the Arthur Compton point that while obviously physics constrains us, our brains are not deterministic machines; if our souls are not affecting them, then at the very least some of their functionality is random.
The final talk was by (Padre) Javier Sanchez-Canizares on "Mind, Decoherence, and the Copenhagen Interpretation." This again comments on many of the topics in previous talks. Unfortunately the talk seemed to paw about problems already discussed without coming to any new realizations. I cannot tell from my notes whether I learned anything about decoherence, which I was really hoping to do; I think I had to look it up afterward, and even then the answers I've found so far are not satisfying. He asked the "Wigner's friend" question that Barr mentioned about the "cut" between the observer and the system in a quantum physics observation. He also made some intriguing comments on the nature of classical physics: if quantum physics is reality, why is it so hard to get rid of classical physics terminology? We still describe things that way. A recent physicist, Zurek, comments that classical physics entities somehow embody a "survival of the fittest" (the sort of comment I start questioning for influence of the divine name of evolution). Heisenberg apparently said that classical physics terms are just unavoidably part of how humans interact with the world.
Episode 072 - Benjamin Rybicki
Episode 071 - Sonsoles de Lacalle
Episode 070 - Nicanor Austriaco
Episode 069 - Fr. Lawrence Machia OSB and Daniel vanden Berk, part II
Episode 068 - Fr. Lawrence Machia OSB and Daniel vanden Berk, part I
Episode 067 - Maureen Condic, part III
Episode 066 - Maureen Condic, part II
Episode 065 - Maureen Condic, part I
Episode 064 - SCS 2019 Panel, part II
Episode 063 - SCS 2019 Panel, part I
Bonus - Quick Hits - SCS 2019
Episode 062 - Jonathan Lunine SCS Conference Preview
Episode 061 – Preview of SCS Conference 2019
Episode 060 – What Does It Mean To Be Human? (SCS 2019)
Episode 059 – Origin Story: Society of Catholic Scientists
Episode 058 – Let’s Act Like We’re on the Winning Side (Since We Are)
Episode 057 – The Best Thing Out There
Episode 056 - Darcia Narvaez on the (other) tragedy of the commons and moral/economic disengagement in civilized society
Episode 055 - Darcia Narvaez on socialization and isolation
Episode 054 - TSSM Season 2
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