I was most interested in O'Brien's explanation of why the game is so compelling: "The game has won legions of fans thanks to its deceptive simplicity. Rather than walking into a virtual world where all the spaces have been filled in by a developer, Minecraft introduces a world that is a blank canvass where players build just about everything...."
If we think about the reality of our human situation and history, as opposed to computer games, human beings originally walked into a world of Nature that was essentially a "blank canvass," and we have succeeded in building just about everything that now exists.
It would, however, be possible. Figuring out how to do that is where I am directing most of my "waking thoughts."