"It takes a long time to learn that a courtroom is the last place in the world for learning the truth"

In this quote, Alice Koller is suggesting that the courtroom, which is usually viewed as a location for justice and truth, is in fact not the most reliable source for discovering the reality. She indicates that the legal system is flawed and typically stops working to discover the whole truth. Koller may be recommending that the adversarial nature of the courtroom, where each side is attempting to show their own variation of the truth, can lead to a prejudiced and incomplete understanding of the situation. She may also be talking about the restrictions of the legal system and how it might not constantly prioritize finding the truth over winning a case. Overall, Koller is highlighting the complexities and drawbacks of the courtroom as a means of finding the fact.