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A comment on Bitcoin is fiat money, too. Parent comment

Re:Bitcoin is fiat money, too by jdietrich on Saturday September 23, 2017 @12:48AM (#15318167)
The top four pools have ~55% of the total hashing power. They could orchestrate a 51% attack with a conference call. As we've seen with the BTH/SegWit2X fiasco, Bitcoin is anything but democratic or decentralised. A cartel is every bit as dangerous as a monopoly.
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Re:Bitcoin is fiat money, too by ric2b on Saturday September 23, 2017 @10:47AM (#15319971)
And what exactly do you think a 51% attack can do? I'll tell you what: censor transactions and make double-spends.

Not exactly end of Bitcoin danger, is it?

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Re:Bitcoin is fiat money, too by Dylan16807 on Saturday September 23, 2017 @04:22PM (#15321522)
If someone had unrestricted ability to double-spend, getting around any attempted countermeasures, they would be able to turn every exchange into a money printing machine. It's hard for me to see how it wouldn't be the end of Bitcoin.
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