Watching https://youtu.be/15RTC22Z2xI has made me think about what applications blockchains are well suited for. What's the benchmark we should compare against?
miniblog.
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Many use cases for blockchains don't seem to require proof-of-work.
For example, a land registry. If I could verify that a house purchase has been written to a replicated transaction log, then I'd be satisfied.
I suppose this is giving up decentralisation, which seems OK here.