Treat pushback as a request to test your reasoning, not as an automatic signal that you are wrong. First ask yourself whether the interviewer introduced new information or exposed a flaw in your logic.

If the evidence changes, update your view. If the evidence does not change and your reasoning still holds, explain why you would keep the conclusion while acknowledging the concern.

A useful response is: "That is a fair risk. Given the data we have, I would still prioritize option A because..., but I would test X before committing."

The skill is flexible conviction: change when the logic changes, not simply because the interviewer sounds skeptical. In practice, pause before responding to pushback so you can distinguish emotional pressure from actual new evidence that should change the answer. For more detail, see the case interview guide.

ngl this is hard because some interviewers push even when your answer is fine.

I think the tell is whether they gave new evidence. If not, you can acknowledge the concern without immediately flipping.