You might laugh, but this is a fairly standard statement you will hear a quantum information scientist say. While we are interested in the technological applica

You might laugh, but this is a fairly standard statement you will hear a quantum information scientist say. While we are interested in the technological applications of quantum devices, we are more interested in using these information processing tasks to challenge and understand the physical laws of the universe. In other words, in the statement "If the adversary is the one who sold you your diode, he might have entangled it in some way with the devices in his own lab", the adversary is actually the physical laws of the universe, and we are testing what those laws allow as far as generating randomness goes.