For Sloterdijk, foam , is a ‘multi-chambered system consisting of spaces formed by gas
pressure and surface tensions which restrict and deform one another according to fairly strict
geometric laws’. The analogy is formally and structurally indicative so as to be understood as
a representation of metropolitan living and is meant to create a rhetorical picture of thinly
walled, notably individual, bubbles that are at the same time connected by machine-mediated
communication vectors that make us part of an orthodox, semi-rigid system.I am including some links rather than attempt to explain too much of his theories wth only a Sloterdijk101 knowledge.
http://www.tandfonline.com/doi/abs/10.1080/03085140802357943#preview
http://www.electronicbookreview.com/thread/criticalecologies/philosophical
http://www.philosophypress.co.uk/?p=1006
http://www2.warwick.ac.uk/fac/soc/sociology/rsw/research_centres/theory/lec/sloterdijk/