As Georg Simmel, but also Niklas Luhmann has argued, the simultaneous
presence of people within a limited space makes communication almost i
nevitably. Especially in premodern secieties, presence was for the mos
t times a necessary and often even a sufficient condition for the deve
lopment of trust, traditions and identities. In modern ,,globalizing''
societies, technical means of transportation and communication seem t
o have broken this neat connections: On the one side, means of mass tr
ansportation of people, i. e. trains, create manifold situations, wher
e presence without communication has become frequent and sometimes eve
n ,,normal''. On the other side, modern means of communication, i. e.
telephones, enable more and more people to communicate without being p
resent. Using terms of Anthony Giddens, this processes therefore can b
e analyzed as separation and recombination of social integration (pres
ence) and system integration (absence).