Great post. I've seen feedback from hundreds and hundreds of interviews, both technical and non, and by far the most common reason for rejecting someone is they did not answer the interviewer's question directly.
Speaking in specifics is important, but more broadly, you didn't do well because you didn't actually answer the question asked. People often get tripped up in their explaination of the answer, or their theory or thinking behind it and just forget to say what they actually did.
Speaking in specifics is important, but more broadly, you didn't do well because you didn't actually answer the question asked. People often get tripped up in their explaination of the answer, or their theory or thinking behind it and just forget to say what they actually did.