"We all know that somebody did it, but how did they find the answer?"

In this quote, John Thaw is expressing a common human experience - the feeling of understanding that something has actually been achieved or solved, however not understanding the process or technique behind it. He is acknowledging that there is typically a gap between knowing completion result and understanding the actions that led to it. This can be frustrating and intriguing at the very same time, as we are left questioning how the answer was discovered. Defrost's words also recommend that there is a sense of secret and interest surrounding the procedure of finding answers, highlighting the value of critical thinking and analytical abilities.