Dear Cambridge Philosophers of Science,

Today is the first meeting for CamPoS.  Unusually, it will meet at NOON 
at (us usual) HPS in seminar room 2 in the basement.  Physicist Carlo 
Rovelli (Aix-Marseille University) will speak on 'What is quantum theory 
actually telling us about the world?  The "relational" interpretation'. 
Rovelli is well known for his work on quantum gravity.  He also 
effectively presents science to the public and defends the value of 
philosophy for science.

    His abstract follows:

'What exactly is quantum theory is telling us about the world remains a 
hotly disputed topic among physicists and philosophers alike, with 
answers ranging from the existence of "many worlds" to a physical role 
for consciousness, from the existence of a priori unobservable facts, to 
the impossibility of a representation of physical reality.  I briefly 
recall the terms of the discussion and present a perspective on the 
problem, emerged in the late 90's and denoted "Relational 
Interpretation", which is currently receiving increasing attention.  It 
is a refinement of the original view emerged from Heisenberg and Bohr's 
the discussions, where key ambiguous terms like "observer" and 
"measurement" are replaced by plain notions like "physical system" and 
"interaction".  I briefly discuss the philosophical implications of this 
reading of quantum theory.'

Sincerely,
J. Brian Pitts




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