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The difficulty re-targets once every 2016 blocks. Bitcoin Cash (BCH) has a added feature that re-targets the difficulty downward if blocks are being found too

The difficulty re-targets once every 2016 blocks. Bitcoin Cash (BCH) has a added feature that re-targets the difficulty downward if blocks are being found too slowly. Bitcoin's Legacy chain doesn't do this so if enough hash power leaves the legacy chain in a short period of time it causes slow block times and people hope that if it gets bad enough there will be an inflection point where people abandon the legacy chain for Cash. The likely hood of that happening is anyone's guess. [0] https://medium.com/@jimmysong/bitcoin-cash-difficulty-adjustments-2ec589099a8e https://medium.com/@jimmysong/bitcoin-cash-difficulty-adjust...

tradersam 9y ago
That downward adjustment is total bs, and can enable (like is happening currently) a scenario where miners lower their hashpower for ~12 hours, the difficulty drops, and they all pile back on and get ~2 minute blocks for 2016 blocks and earn a shit ton of money.
j_s 9y ago
So the delay between BCH's new rapid/emergency 'difficulty downward' and its re-targeting back upward using the standard method is the window of opportunity/market inefficiency/whatever you want to call it? This was linked elsewhere in this discussion: http://fork.lol/pow/retarget http://fork.lol/pow/retarget