Top critical review
Great on Blockchain, weak on Cryptocurrencies
Reviewed in the United States on January 4, 2020
The authors have done an excellent job on the more technical aspects of blockchain and cryptography. And from that perspective the book is a good read.
However, I was sort of disappointed with their knowledge on Cryptocurrencies.
Paul Krugman's quote (heading the chapter titled 'Bitcoin Blunders') shows this...
"Cryptocurrencies, by contrast, have no backstop, no tether to reality. Their value depends entirely on self-fulfilling expectations — which means that total collapse is a real possibility"
My response to that is... where in human history has a fiat (or supposedly gold-backed) currency survived?
All currencies in human history have collapsed over time, usually inflated away to worthlessness.
Finally, the distinction between Cryptocurrencies as a store of value versus transactional instruments was not properly spelled out. (Something a techie would ignore but the financial world cannot).
Summary: A decent book, written by techies (more of an aggregation of information with no groundbreaking technical perspectives) and some deficiencies re. the understanding of Cryptocurrencies