Explore the disconnect between powerful testing tools and their actual adoption in this 28-minute conference talk from PyBay 2025. Examine why advanced testing techniques like property-based testing and coverage-guided fuzzing remain underutilized despite their capabilities, drawing insights from years of experience maintaining Python testing infrastructure. Discover how the challenge isn't creating better tools, but making them accessible to developers. Learn why testing tool adoption is fundamentally a social problem that requires technical solutions, and understand the gap between what's theoretically possible and what developers practically implement. Gain perspective on making advanced testing not just possible, but practical for everyday development workflows.