question about diff retarget
value of new diff depends of power of global network in Mhashs/s in last block before retarget
or average power of global network in the period separating (two days) two diff retargets
Hello mr.pacy.mf!
The second option is correct, but it is not necessarily two days, as the difficulty is being changed every 960 blocks and those might be mined faster or more slowly.