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Less is more: Signatures, cities and hash codes

In 1997, the Hubble Space Telescope’s Imaging Spectrograph (STIS) picked up the signature of a black hole. Instead of a vertical straight scan line, the STIS showed an S shape. Signatures point to the presence of something (a referent). But you see the thing only indirectly, i.e. you get to know that the referent exists, … Continue reading

Tags and codes

Graffiti tags are like the scents left by animals to mark territory. The territorial call signs of birds presumably fill a similar function. Territories are defined as much by secret conventions as they are by walls and boundaries. As explored in my previous post, one of the technical terms for such sign conventions is “deictic” … Continue reading

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