I personally blame good video/audio editors working on interviews, as well as "staged" interviews where the interviewee gets time to review questions and form a

I personally blame good video/audio editors working on interviews, as well as "staged" interviews where the interviewee gets time to review questions and form answers before the cameras start rolling. Either way they make it seem like everyone has the answer right at hand by removing pauses for thought and stammers, which means future interviewees are compelled to give an answer straight away since they believe smart people are certainly capable of having wise answers on hand.