If you are suggesting a mega-thread, please summarize that thread first and include it in your suggestion post.
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You just have to understand the money and resources involved pulling it off and what incentives the bad actors doing a 51% attack, it's not worth a try.
It's not worth it for now, but what if it happens in the future where bitcoin cant be mined anymore or when the bitcoin block reward is already too small and makes the bitcoin network difficulty becomes so low?