Hi mates,

So basically, for a same mining algorithm family (e.g. cryptonote coins), why should we prefer mining coin X rather than coin Y?

Is it about:

• the difficulty?
• the ROI (though related to previous bullet)?
• the seriousness of the project?
• the growth potential of the project?

Concrete example: why should we prefer mining ETN over XMR?

Also, could anyone briefly explain how mining difficulty works?

Thanks @all