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Maybe I'm not as smart as you. But how a miner that went out of business because they can't maintain operations (because electricity costs, employees costs, maintenance of equipment, upgrade to new technologies, etc.) can attack a network of miners that are still in business and CAN maintain operations? It doesn't make any sense to me.
as you can check around, I'm focused on network security (difficulty) regression
because decreasing security will erode Store-of-Value (purchasing power of Bitcoin) , what is advertised as the one of most impotant Bitcoin features/properties...
And potential other consequences - like for example if there is only 25% of network hashrate of the past ATH, and rest 75% of ASIC hardware is idle and ready to use, who knows if not in a malicious way - that's only another, additional consequence here.
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