Im inspired by the creative and social potential of this game, but worried about its addictive nature. Do playdates now become 'minecraft playdates' and does that matter? If true interaction is involved then it seems to be a good thing. But what about old fashioned tag? Thats definitely better for your health.
As for reading, i agree that it isnt better from the perspective that you are absorbing anothers creation. But its not completely passive. You are acquiring an enormous vocabluary, inspiring your imagination, and basically improving your mastery of the language you are reading in. Strong language skills are a definite asset in life.
I think reading can be addictive too, as can tv, but there's something about computer games that are particularly addictive.