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Quantum Questions #1

I have been thinking a lot about quantum mechanics and its interpretations after a wonderful dinner with Marcelo, Robert Caldwell and Christopher Fuchs two weeks ago when I was at Dartmouth.

I am sure to be writing more about the places that discussion is taking me over the next few months. For now I wanted to provide this quote from John Bell (of Bell's inequalities) that I found in a recent paper of Fuchs.

"What exactly qualifies some physical systems to play the role of 'measurer'? Was the wavefunction of the world waiting to jump for thousands of millions of years until a single-celled living creature appeared? Or did it have to wait a little longer, for some better qualified system . . . with a PhD?"

Good question. Here is another.

What is quantum mechanics trying to tell us about the deeper structure of the world?