PBS: Personal Border Sign

PBS refers to the invisible border which surrounds the personal space. PBS claims that crossing the personal
border is no different than crossing a country border. In order to cross borders on a political level, the pre-
sentation of passports and visas or other appropriate forms of identity document is required by some legal
orders. The phrases which appears on the LCD screen symbolizes the bureaucracy and the documentation
for crossing the borders.

The sign on the LCD screen changes according to the change density of people around. There are four levels
of intrusion which are demonstrated with four phrases;

Level 1 No trespassing
Level 2 Welcome to my border
Level 3 Visa required!
Level 4 Alarm! Intrusion!

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