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@feld @gsuberland Every time I hear this blockchain shibboleth, I ask "how, precisely, does a silly, expensively-generated number stop someone from mixing unethically-sourced material in a shipment? Or draining, say, a tanker of legit high quality olive oil and refilling it with low quality crud that has some food colouring? Or ...

I genuinely don't see how "TEH BLOKKCHAYNE" solves the *real* problems of supply chains.

I'm willing to be enlightened, though.