In many countries, urbanization is accelerating, while populations in rural areas continue to shrink. Some argue that this trend inevitably leads to a loss of social vitality and the erosion of traditional values; others contend that urban concentration is the only effective path to driving innovation and economic growth. Given that both positions have their merits, do you believe urbanization is, on the whole, more beneficial to society's long-term progress, or does it pose a threat to the very foundations of human society? Please elaborate on your viewpoint, providing specific reasons and examples to support your stance.