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If this were so then Bitcoin Cash would have been dead from the start. They hard forked with much less than 49% of hashpower. There are really two separate sce
by tboyd47 9y ago
If this were so then Bitcoin Cash would have been dead from the start. They hard forked with much less than 49% of hashpower.
There are really two separate scenarios we're talking about here. Miner activated hard forks, which are a real thing that have happened (though not exactly like you describe), and a hypothetical situation where a group of miners agree to create an exclusive chain that is also backwards compatible. I'm no expert but I don't think that would have the intended result.
- Dylan16807 9y agoIf bitcoin cash was making blocks that were exactly compatible with bitcoin blocks, in both directions, then yes it would be dead immediately. That's the difference between a hard fork and a 51% attack. In a 51% attack you keep making normal bitcoin blocks, just the ones you want.