Imagine a landscape with mountains, valleys, & plains. Due to gravity, the valleys are attractors. BTW: My Word perfect spell checker does not accept attractor as a word. There are mathematical processes which lead to one or more values, which are often called attractors. An example are processes which find square, cube, & polynomial roots. There seem to be analogous processes in the human brain used in dealing with understanding verbal communication. Without such processes, a conversation would be difficult for people with different regional accents. A similar problem is similarly solved when conversing with a foreigner using a local language poorly. I believe that the confusion some orientals have with English R & L pronunciations is due to such an attractor. For them, both R & L use the same linguistic attractor. I wonder if a Poster more knowledgeable in linguistics has some thoughts related to the above. There was once a delightful dialogue between fictional character Max Smart & an Oriental, which started as follows.