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I've added some inline citations for the Deleuze section, and some fact tags. I haven't encountered the version of the virtual (the first version) explained there in Deleuze, but I've left it in for the time being to give the opportunity for some inline citations to be added before I delete it. I've expanded a little on the relationship to Bergson's philosophy. Citations formatted in MLA author-date system. There was also an argument about virtual = "in principle" that I've removed. It seems to misconstrue the argument on p.106 of Bergsonism, where Deleuze is describing a relationship between life, duration, freedom, and memory. DionysosProteus (talk) 11:49, 10 August 2010 (UTC)