Where blockchain should not be used?
As a practitioner in the field of cryptocurrency and finance, I often hear about the potential benefits of blockchain technology, but I'm curious about the flip side. Can you give me some examples of situations where blockchain might not be the best solution, and why? Are there any specific industries or use cases where blockchain's unique properties, such as decentralization and immutability, could actually cause more harm than good? Additionally, are there any scalability or cost concerns that might make blockchain an impractical choice in certain situations?