WHAT!? NOT ROBOTS?! Nah, I'm just kidding. I know a few INTJs that can act fairly laid back, and like to joke around. This just goes to show, that the type descriptions are basic generalizations, and every type has everything to it- seriousness, playfullness, emotions, logic. Some types set their preferences just a hair differently.
We're not so different..you and I.
Is it that by its indefiniteness it shadows forth the heartless voids and immensities of the universe, and thus stabs us from behind with the thought of annihilation, when beholding the white depths of the milky way?
Think about it... can computers be creative or choose goals? No, they just follow instructions from the user that they interpret according to pre-programmed standards. Does that sound like what INTJs do?
That sounds like what everything in the universe does, including humans (interacting with environment in accordance with physical laws).