Blockchain applications

In a recent conversation with a technology-expert-converted-CEO, I asked the question, "Why do you use Blockchain in your application?". He said, "I don't have to. I can use a traditional database and provide a version of it to each one of my clients. When one of them creates a transaction, I can write code to identify it, and trigger a copy to be written into all other databases. I would then build a mechanism where if one of these clients changed the records, I triggered an alert to the entire network about it and hope it all would somehow work as a framework. Alternatively, I could let Blockchain do it all for me."

I loved the answer. Typically, others would go on to defend Blockchain technology and its merits over traditional data management systems. That response should give you a simple view of Blockchain's abilities as a data register, or as it is famously called, the ledger. As far as the financial services...