Michael St Laurent, a seasoned CRO expert, shared his insights on large-scale testing Here are 5 key takeaways for marketers: Prioritization is key: Large-scale testing requires prioritizing tests based on potential impact and aligning with overall business goals. AI is the future, but humans guide it: Mike emphasizes the power of AI in automating processes and analyzing data, but highlights the importance of human expertise and guidance. Data quality is crucial: AI models rely heavily on the quality of data. Invest in building a robust data infrastructure to ensure accurate results. People are the biggest challenge: Navigating internal politics and managing stakeholder expectations is often the biggest hurdle for large-scale testing. Building a testing culture is a win: The ultimate goal of large-scale testing is to create a data-driven culture that fosters continuous improvement and better user experiences.