[kccqzy]

> There are far too many corners of logic for everyone to know. Maybe someone has never dealt with data streams, or even forgets what a median is.

Bad interviewers expect candidates to know things. I don’t. It’s okay for a candidate to have never worked on data streams or to forget what a median is. I simply provide the definition and continue. I care about the quality and effectiveness of thinking. If the candidate can be given a definition and then immediately turn that into code, that already shows that they are good at logical reasoning. It’s basically the same kind of thinking required when there is an urgent request at a startup and an engineer is pulled in to come up with a solution quickly; all the business logic will be new and you want someone who can learn quickly, internalize quickly, and produce results based on these learnings quickly. Therefore in my opinion asking these interview questions are actually a good indicator of how they will perform in a hectic startup environment.