I'm not sure it's relevant, although the book is fantastic.

The first few chapters show that historically money predates barter, not the other way around. And that money was born as "I owe you" notes issued by the government.

I know of only one comment [1] Graeber made about bitcoin, and it's too late to ask him now.

[1]: https://twitter.com/davidgraeber/status/990857460176089088