Nigeria, April 24 -- There comes a point in the life of a republic when explanation no longer restores confidence and only experience does. Democratic systems rarely announce their moments of reassessment; they accumulate them quietly until they become unavoidable. No government is judged forever by what it inherits. It is ultimately judged by what it makes of inheritance. There comes a time when the conversation around leadership begins to change shape without anyone formally declaring it. Citizens start, as they always do, by measuring inherited problems and historical burdens, but gradually the focus shifts. What begins as explanation becomes evaluation. What begins as context becomes consequence. At that point, the question is no lon...