I still don't know why the author brought religion/faith/god into the discussion; he seems like a religionist trying to come to grips with the dominance of our world by science and the scientific epistemology.
> he seems like a religionist trying to come to grips with the dominance of our world by science and the scientific epistemology.
That's because he is. Take a look at the articles listed on his website.
I think the reason is because he was trying illustrate that you can say an awful lot (in analogical language) about things that are not empirically observable.
> scientific epistemology
Science can't tell us so far what really exists. It can only predict experiments. To put it in more common terms, "is the wave function real or not?", or "do quantum fields really exist, or are just elegant mathematical abstractions for explaining experiments?"
Or as others say "shut up and calculate".
Beeeecause this was a lecture delivered at a Catholic philosophy/theology conference?