https://livingwaters.com/is-elon-musk-a-christian-now-listen-to-his-answer/
AFAIC, accepting Jesus’ teachings is a lot more important than making statements of belief but not living the teachings. I think putting people on the spot asking the most personal question about one’s beliefs is not really the right thing to do. WWG1WGA does not have a religious test.
Spinoza’s concept was certainly extremely incomplete, to put it mildly. Elon may develop spiritually as he grows older, hopefully he will.
The costume Elon had on reminded me of the book by Arthur C. Clarke, “Childhood’s End”.