What ' s the Hyprid Pro jump ? I was about to pull the trigger on buying an Airdrive . <| sep |> Is there some disconnect between what we are trying to say ? That ' s not ' my own link '. That ' s the source for the numbers in the wikipedia article you linked me . I did read it and quoted from it . You seem to have chosen to ignore those figures and instead pick the single bottomtotop quintile mobility percentage . Maybe I did not understand what you meant during the video . The numbers for what I would call ' reasonable ' movement between quintiles look pretty good to me . It even states that middle class experiences almost perfect mobility . You ' ve just quoted the obviously least likely scenario where people move across the entire spectrum top to bottom or bottom to top . If this is what you meant by exceptions during the video , then we obviously agree . You certainly did make it sound like that during the debate , further supported by the fact that you dragged middle class people into your example , which is , as provided by this source , simply wrong .