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.
10 sats \ 1 reply \ @ama 10 Mar
The only one or one among a few, no need to be just one. :-)
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0 sats \ 0 replies \ @ek 10 Mar
Yes, it was just an extreme example to make it clear. You're right.
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27 sats \ 0 replies \ @Fabs 10 Mar
Yep, there's a given factor that the difficulty can be adjusted by per time.
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