By Anjum Altaf City size is back in fashion as a variable of interest and this time bigness is being viewed as an advantage. This is quite a change from the perspective that prevailed for years when countries, specially developing ones, were decidedly anti-urban and wished to retard migration to prevent cities from increasing in size. Size was seen as a handicap and served as an excuse to explain away the problems of big cities. How should we see Karachi in this new perspective? Of course, well-managed big cities have been around for a long time – Tokyo, New York and London are obvious examples. But somehow it was felt that such success could not be replicated in developing countries.