Castoriadis's reflections on cosmology emerge from his argument that time and creation are interrelated. Through an elucidation of the overarching meaning of time, he looks to articulate philosophically an image of the physical universe that is neither reducible to a purely scientific or religious imaginary. Castoriadis questions traditional philosophical responses to time, and critiques the demarcation of time into either “objective” or “subjective”. He seeks to elucidate time cosmological time as the emergence of alterity, and, as such, is irreducible to space. Castoriadis offers an interpretation which draws on the Greek imaginary as a distinct grasp of the world, and highlights the radical temporality and heterogeneity of being as à-être (as the incessant autocreation of other forms), whilst still giving the social-historical its due.