100 sats \ 3 replies \ @ek 10 Mar freebie \ parent \ on: What would Bitcoin "Failing" Look Like? bitcoin
They mean that too much hashrate goes offline at an unfortunate time. Difficulty adjustments only happen every 2016 blocks so if you're the last surviving miner after a mass exodus early in the new difficulty period, good luck mining all remaining blocks yourself. Also, there is a limit how much difficulty can adjust in a single period iirc.