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by Kbelicius
1475 days ago
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> OP states there is nothing unique or special about blockchains, then notes a unique and special fundamental aspect that enables (some) blockchains. PoW precedes bitcoin by quite some time so the idea that it is a unique and special thing about (some) blockchains is false. |
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The person I replied to means by the 'it' that they see no novel unique thing about the bitcoin system itself, or perhaps any arbitary cryptocurrency system in general. It's reasonable to assume that in a discussion titled "In defence of cryptocurrency", saying "it" without qualification references the main thing everyone is talking about, not any single part or sub-idea.
But the brilliance of bitcoin is exactly how it merged 2 completely different ideas to obtain a breathtakingly novel 3rd idea that is much more valuable than the sum of its constituents. A centralized blockchain gives you exactly as much trust in its contents as the amount you're willing to put in whoever holds the root hash pointer, a PoW posting/updating algorithm gives you trust that writes by anonymous nodes probably cost that node some amount of computational work (as much trust as the underlying work function has anyway).
On the face of it, those previous 2 things have nothing to do with each other, none of them references (even implicitly) the other in any interesting way. It takes intelligence to look at those 2 things and imagine a distributed append-only database with untrusted unnamed peers, and then come up with the all the rest of details and rules that make it work, and then implement all of this in a (relatively) bug-free open source real system. To the extent that any of this seems obvious or inevitable in retrospect, it's all the more evidence for how genius it is.
It doesn't matter a single gram that the technology later attracted scammers, radicals, and con men who think it's a silver bullet for solving any problem, I can say just as much about OOP. And yet nobody disputes the genius of Alan Kay and the novelty of Smalltalk.