If you are lucky you will be the dumbest in the room long after you aren't. Behaving as or even being the smartest isn't very productive toward learning. If you desperately need the job then you could be more cautious but if are you are not in a desperate situation then be the idiot, allowing you to soak up whatever you can learn or get fired by people too self-consumed to see the value in that. Keep in mind that there are probably others around you that do not understand everything but might be too shy to throw a wrench into things. And even people that do understand everything having a jester around to get to the basics has a valuable effect.
You'll only find an environment that fits you by getting booted from the environments that don't.
You'll only find an environment that fits you by getting booted from the environments that don't.