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There are five issues to reflect on when we start to reconsider the question of walls and boundaries in the contemporary context. In today’s open world where freedom of movement is so greatly valued, there have never been so many walls and boundaries. Every issue that touches on “walls and boundaries” symbolizes the question of relationships with others. The relationships between boundaries and identity are complex: private or public life cannot exist without identity, and therefore without walls and boundaries in some form. The political project for a united Europe is a particularly obvious example of the ambiguousness of walls and boundaries. The normative question that expresses the link between the problematics of communication and the problematics of walls and boundaries can be summarized as follows: how can the increasingly visible fact of un-communication in an open world be managed without leading to yet more forms of enclosure and exclusion?