Radical Scepticism

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


8.1 Cartesian foundations: the role of doubt—The assumption of the ego cogito as minimal evidence—Why our faculties, including the sensitive one, can be reduced to mental faculties—Descartes’ goal: justifying the internal experience through an external order—God’s qualities: significance of existence—Difference between “formal reality” and “objective reality”. 8.2 Descartes on essentiality and existentiality—The scholastic tradition: in what way can there be in generated beings a “metaphysical distinction and composition between essence and existence”?—Beyond the mere impossibility of self-generation: actuality as non-essential—Two ways of looking at compositionality—Heidegger’s view of the problem. 8.3 Ontic and ontological statuses—The kind of existence we attribute—Physical and metaphysical worlds: why the seeming materiality of things is not enough to objectify them—Descartes on dreaming: its context-saturation—Modal uncertainty as unrestricted: analogy with astrophysical black holes—Imagination and necessitation—Flaws of Descartes’ conclusions—Sosa’s understanding of dreaming—Greco and Williams on Cartesian contextualism—The trouble with bringing formality and objectivity back together.

Original languageEnglish
Title of host publicationDescription of Situations
Subtitle of host publicationAn Essay in Contextualist Epistemology
EditorsNuno Venturinha
Place of PublicationBerlim
Number of pages7
ISBN (Electronic)978-3-030-00154-4
ISBN (Print)978-3-030-00153-7
Publication statusPublished - 2018

Publication series

NameSpringerBriefs in Philosophy
ISSN (Print)2211-4548
ISSN (Electronic)2211-4556


  • Descartes
  • Doubt
  • Dreaming
  • Essence
  • Existence
  • Uncertainty


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