Blockchain tech can only be trusted if everyone is playing fair also. There are 51% attacks that have been successful.
Miners are also negatively impacting astronomy and other academic research. The cost and wait time for GPU acquisition definitely is good for hardware vendors, but bad for a broad swath of GPU consumers.
Additionally, Dapps are not really a new thing. BitTorrent, Kazaa, etc., have existed for nearly two decades.
Well, 51% means more than half of the users. That's different to "everyone". Git really needs everyone (100%) to play fair. And while Bittorrent, Kazaa, etc. shared data, Dapps also share logic (code).
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