The historic Dutch Fort Zeelandia (TW) plays a crucial role in the design of the central object that is moved on the electric trolley through Taipei and its markets. Using the map of the fort as cargo, Frank Havermans moves through the metropolis, interweaving the interplay between small-scale everyday trade and large-scale geopolitical trade. Reactions while driving around; the conversations, anger, cheerfulness, curses, are absent. Did it also happen like this in the 16th century. Strange people come by ship and build something unknown, it turns out to be a defense structure, and then a few years later it is determined from this place what you should do and how you should think. Extended to the present day: Can you ignore an unknown element?