The way we feel about it reveals something about us. He cites examples of people who found comfort in the idea of an absence of free will but also people who are terrified of the idea.

I was personally raised agnostic, and after a long existential road including at least one severe crisis and mindfulness / CBT therapy, came to found the idea of a lack of free will be to be incredibly comforting.

My generally similarly minded father, however, seems to find the idea pretty terrifying.

To me the lack of free will and physics of the universe provides a comforting structure that I lacked for life, to him, as someone raised Catholic with a lot of moral teachings about choice, I think it represented a terrifying teardown of the underlying foundation that he's known and built his life on.