At some point,
Bcash difficulty will exceed what its block reward will be worth, at which point all miners should leave.
Not exact matches
Now, keep in mind that for miners to mine
Bcash at all, its
difficulty must be even lower than its block reward, compared to Bitcoin, and that if that is the case, all profit - maximizing miners are expected to pile on.
So, if
Bcash's block reward is worth 15 percent of Bitcoin's block reward,
Bcash's
difficulty must also be 15 percent of Bitcoin's
difficulty, or lower.
And even if some miners do mine on the
Bcash chain toward a
difficulty adjustment, it would just set the exact same dynamic in motion after a while.
Then, once the
difficulty adjusts upward by a lot, and all these miners will switch back to Bitcoin — until some miners trigger
Bcash's EDA again, potentially after 12 hours or so, and all miners hop back on
Bcash, creating a sort of stop - and - go cycle, on repeat.
Then, last weekend, the
Bcash mining saga further developed, as some miners periodically triggered an emergency
difficulty adjustment, leading to extreme swings in hash power, unreliable block times and increased inflation.
To mitigate this problem,
Bcash implemented a feature called the «emergency
difficulty adjustment» (EDA).
The
Bcash chain would be more profitable to mine for a couple of days, after which
difficulty shoots upwards and the chain should freeze in its tracks.
On both Bitcoin and
Bcash,
difficulty adjusts once every 2016 blocks, which is «supposed» to happen every two weeks.
At this point,
Bcash's
difficulty is so high that Bitcoin is once again the most profitable chain to mine on.
The
difficulty adjustment process was meant to compensate for this, reducing
difficulty to a level more appropriate for
Bcash's low hashrate within a few blocks.
As a result,
Bcash blocks remain slow, although
difficulty has since adjusted to about 1/4 of Bitcoin's.
It still takes relatively a lot of time to get
Bcash transactions into the blockchain and that's due to the high
difficulty of mining.
Bcash forked with the same mining
difficulty as Bitcoin but only a small fraction (around 5 %) of its hashrate.
Bitcoin Cash, now known as
BCash or BCH, is a top preoccupation of Wu, who potentially faces
difficulties from regulatory changes.