The Currency Cold War: Cash and Cryptography, Hash Rates and Hegemony, reviewed Simon CockingJune 9, 2020 By Simon Cocking, review of The Currency Cold War: Cash and Cryptography, Hash Rates and Hegemony written by David Birch. Published by the London Publishing Par... Book ReviewsBooksBusinessCryptoCryptocurrencyFuture TrendsInnovationReviewsTech News