2. “Digging into these layers, we often find that, depending on
different contextual factors, various infrastructures have
distinctive temporalities and evolutionary paths. Through
‘excavation,’ we can assess the lifespans of various urban
media and ascertain when ‘old’ infrastructures ‘leak’ into
new-media landscapes, when media of different epochs
are layered palimpsestically, or when new urban media
‘remediate’ their predecessors.”
—Shannon Mattern, “Deep Time of Media Infrastructure”