New learners should be aware that Duo' is also a philosophy, given to quirky and sometimes flippantly provocative comments. Some questions may contain anti-telephone salespersons content, (which can trigger Swedes especially). Needling slurs about Trump, and ideas about 'joining-of-nations-together' have been known to appear, innocently enough, but might be part of the wider Silcon valley grand-plan. Concern for the 'purchasing power of poor' people might be connected with a dig at their dietary habits and seem to be leading to the suggestion that ants, turtles and even moisteurising cream.... might be substitutes for good nutritional self-control. It is wise to remain vigilant.