The discipline of mental models starts with turning the mirror inward; learning to unearth our internal pictures of the world, to bring them to the surface and hold them rigorously to scrutiny.
Mvua na kimbunga zikitokea nyumba hiyo ikapata nyufa, utapata nafasi ya kurekebisha nyufa hizo na kama zinagusa msingi utalazimika kuvunja nyumba hiyo na kuijenga upya kwenye msingi mpya.