My point is that a public append only database (AKA, a Blockchain) is useful for a whole lot of things, in a whole lot of different usecases. And just because

My point is that a public append only database (AKA, a Blockchain) is useful for a whole lot of things, in a whole lot of different usecases. And just because JPM isn't following the exact same formula that other people are following, doesn't mean that an append only public database is useless to them. Lots of people have used append only public databases for all sorts of things, for decades. (My example being Git).