Don't, don't, don't, don't believe the hype!
Enough about the hype around self-driving cars, now on to the hype around cryptocurrencies.
Sysadmins like David Gerard tend to have a realistic view of new technologies; after all, they get called at midnight when the technology goes belly-up. Sensible companies pay a lot of attention to their sysadmins' input when it comes to deploying new technologies.
Gerard's Attack of the 50 Foot Blockchain: Bitcoin, Blockchain, Ethereum & Smart Contracts is a must-read, massively sourced corrective to the hype surrounding cryptocurrencies and blockchain technology. Below the fold, some tidbits and commentary. Quotes not preceded by links are from the book, and I have replaced some links to endnotes with direct links.