The control of the difficulty adjustment is extremely important
because bigger miners could artificially warp and influence the mining difficulty by switching their operations on and off to get greater gains.
Not exact matches
The original Bitcoin has already been exhausted
because of its longer transactions time,
big transactions fees, less earnings to
miners, outreach from the common people and most important its core system, the blockchain itself.
If
miners activate SegWit2x and start mining
bigger blocks, the nodes will not accept those blocks
because they aren't valid according to Bitcoin rules.
Because of mining competitiveness and the unprofitability of solo mining, as long as these
big groups exist, small
miners don't.
Because transactions must compete to get picked up by
miners, who favor the ones that offer the
biggest fees, somebody who wants to move $ 1 mln can easily afford to offer $ 20, but someone who wants to buy a pizza probably can't.
Because electricity is one of the
biggest costs for any bitcoin
miner, if hardware power efficiency can double every three years, the researchers predict the minimum required price for new entrant profitability could drop to $ 530.