Create an image of a crossroads in an ancient city, where paths lined with stones worn by centuries of footsteps intersect. Each path is flanked by walls adorned with murals that depict stories of the past and aspirations for the future. This crossroads symbolizes the intersection of big data and small data - the grand scale of human history and the intimate moments that define it, inviting onlookers to ponder the connection between macro trends and micro narratives