UTC-05:00,Saturday , November 17th 2018
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BM: PoW Networks Are Not Byzantine Fault Tolerant

21:34 Wednesday , November 07th 2018
Daniel Larimer, also known as BM, discussed the Bitcoin energy efficiency and PoW in the telegram group and expressed his opinions. He said, "Blockchain state should be abstract and deterministicly derived from inputs."

Later on, he tweeted to say that proof of work is like Byzantine generals that can approach but never reach consensus as it is always possible to mine a longer alternative and all full nodes will switch. Hence, PoW networks are not Byzantine fault tolerant.