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.
Beeeecause this was a lecture delivered at a Catholic philosophy/theology conference?
> 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.
> 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".
> It can only predict experiments.
Your "only" here makes it seem like predicting experiments is a narrow thing. It's not. All of the modern technologies we have--including the computers we're all using to post here--are based on science "predicting experiments"--but the "experiments" are things like building computers, or the Internet, or the GPS system. The fact that all those things work exactly as our science predicts makes it very hard to view that science as "only predicting experiments". It's telling us how to use real things to build real technologies that have real impacts on people's lives.