I have a postdoc interview, I found a video that talks about the most common postdoc questions where the person says "the general rule of thumb is that all your answers should start and stop within 30 seconds", he also suggested to summarize your answers to 3-5 sentences. He insisted on this especially for the "tell me about yourself" question, is this really the "general rule of thumb" of postdoc answers? Because I have tried this for the first question and I found myself talking for 1 minute or so.
For the sake of clarity, how long should your answer be for the "Tell me about yourself" question? If I am supposed to summarize my answer to 5 sentences, I feel that I will leave out a lot of details !