Bitcoin’s Big Ethereum Problem

And I continue to believe that listing failed orphan chains as “currencies” on major crypto exchanges is a very bad idea. Not only because it makes things more difficult and confusing – which perhaps is where the “philosophical” love for Ethereum Classic is coming from – but because Classic has a hashrate so low that a group of activist miners could, if they wanted to, 51% attack and destroy Classic. Ethereum Proper, on the other hand, has significant hashrate… making it a smart contract platform less likely to be compromised by activist miners than its weak castaway orphan.

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