A little disappointed by an author I really respect. I appreciated the unique conversation on the tired-to-me "billionaires chasing immortality" theme - there's a lot of good philosophy in this that was thought provoking and I rolled my eyes in boredom less than I could have. DeLillo loves a two-part story and maybe that's just not my vibe! But, as always, I never finish a book that doesn't interest me in some way, and what kept me coming back was his emphasis on language as humanism, informed ontological debate, and, of course, a small and unexpected tennis-as-relationship theme. In conclusion, shrug emoji.