A timely blockchain reality check; for more, see this NYT DealBook Special Section
"If it is successful, blockchain technology will bring a new level of enhanced trust to business and will also cut out the middlemen that have historically tracked — and profited — from the complexity of so many different systems trying to communicate with each other. That could lower prices for goods and services.Demystifying the Blockchain -- NYT
At the same time, for all the promise of blockchain, there are real questions about whether it may be applied to solve problems that don’t exist. Databases already exist and, in certain cases, a centralized database might actually be preferable to the blockchain."