People that have an complex mind function and are capable to express profound philosophy or knowledge, but also the most stupid things and jokes. At same time. You only will be able to differentiate at the moment them open their mouth and say something... Which can be an utmost reflection very useful and pertinent, or a completely stupid bullshit or even a completely stupid bullshit that can express an useful thought.
He's a schrodinger's imbecile. You will never know what can come from what he will say.