Sloterdijk is interviewed in the LA Review of Books, mainly on Spheres I: Bubbles. Thanks to ANTHEM for the link. The interview was conducted by a reading group at UC Irvine, where Sloterdijk later gave the Wellek Library lectures. I don’t know what the theme of those lectures was, but the interview mentions his current project of “on the relationship between the “miraculous,” with its theological connotations, to the “wondrous,” with its connotations of pure aesthetics”.