Hi! I didn't have an interview per say, but a "conversation" with a professor I'd spoken with before. It was very informal, she just wanted to ask some clarifying questions about my research interests to better represent them to the broader faculty. According to her, Columbia cuts about 90% on first round. They've done that already (but interviews aren't part of that, she said those decisions are based on level of preparation), now the applications go to a set of faculty (ex; the Europeanists), who make another round of cuts. I think that round is happening now, we spoke last week and she said it was coming up. After they cut another 50% and come up with a list of candidates, then the buck gets passed to the admissions committee and they have final say. She warned me that they'll be taking about 18 people, down from 30, and that she personally isn't on the admissions committee this year so its out of her hands at that level. Essentially, not having an interview or a 'conversation' doesn't seem like it matters - this whole process is so arbitrary and opaque, I'm sorry you feel anxious...maybe try to distance yourself from this process...its so far out of our control. And for reference I applied in international and modern British, but the breakdown of which faculty read which applications still isn't entire clear to me. I hope that helps!