This is one of my favorite sci-fi books of all time. The explorations into autonomous corporations comprised primarily from software as some of the main economic and legal actors was quite interesting.
IIRC the weaponized sentient pyramid scheme was weaponized against what, if we’re following the book as a map, is today the crypto economy (Economics 2.0 in the book)
Part of the book also fall together nicely if you realize that IRL Stross is a cat person.