> Because that's generally what really drives adoption, investors willing to fund innovation that adds value. I mean, why use blockchain for this when there ar

> Because that's generally what really drives adoption, investors willing to fund innovation that adds value. I mean, why use blockchain for this when there are appropriate centralized, trusted tools for solving centralized trusted problems. > Build a 'siphon' into the blockchain to capture small bits of each transaction and re-sell that to generate income? That's a centralized siphon (and why would anyone pay you to use this blockchain?). > There are also different types of centralization that don't necessarily involve interfering with the blockchain. You can decentralize the ledger but centralize the transaction entry. Or centralize the reporting (anyone can make entries but only the authority can verify them, subject to auditing). Verification is definitely a key part of blockchain--if you don't have decentralized verification you have a datomic-style log with a decentralized cache. If you centralize that I'd say you don't have a decentralized blockchain any more (this is basically Ripple, or if you're talking about non-coin type logs, git changelogs with signed commits where you only accept commits from entities you trust).