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That's definitely one side to the game. Personally, my general rule of thumb is that if you take it anymore seriously than any other game on your phone, at some point soon, you're gonna have a craps experience like he did. But if it's more "Hey, I've got 15 minutes to kill at the park before the bus come, why not check for portals?" it can be a fun way to pass the time. Like a more active CandyCrush.