I met Castoriadis only twice, once in Paris in 1979, and then repeatedly in Melbourne in 1991 over the time of the Thesis Eleven Conference on Reason and Imagination. Both these encounters, in different ways, were transformative for me. As it happens, I remember them very well. As the distance risks clouding memory, I take time in this paper to reconstruct and share these stories. They take us back to the world through which we first encountered Castoriadis, as Paul Cardan, (...) via the efforts of London Solidarity and its emblematic hedgehog – small and prickly, doesn’t like being interfered with; known to pop up in ways that might just be revolutionary. This was Castoriadis as I first encountered him, and this was the culture I likely never got past: Socialisme ou Barbarie, en anglais. (shrink)