At the Testμ 2022 Conference, Maaret Pyhäjärvi, a seasoned Principal Test Engineer at Vaisala, delivered a keynote on her unique approach to software testing, particularly focusing on a concept she calls "Foo." With over 25 years in the testing industry, Maaret emphasized the importance of exploratory testing and how it aligns with contemporary practices, blending manual and automated methods. She highlighted the role of AI, using GitHub's co-pilot for code writing, and discussed the nuances of tester-developer collaboration, underscoring the tester's unique role in identifying overlooked issues. Maaret's session explored various aspects of parameterized tests, unit exploratory testing, and the need for a flexible yet thorough approach to testing, which she believes is crucial for addressing production failures. During the Q&A, she shared her views on testing methodologies, the impact of AI on testing, and the balance between programming and testing skills in candidates. The session underscored her belief in the continuous learning potential within the testing field and the importance of real-world application in improving software quality.