-snip-
Since 2 months now RVN difficulty exploded. (Does anyone know the reason?)
Obviously, aside from it just started last year, miners realized that it's more profitable than Ethereum because of "
whattomine" or other sites and collectively switched to RVN.
It's as simple as this: More miners = higher difficulty.
Just to add, that also means lower income for miners since they will be splitting the reward for each blocks, right? That is something I just observed.