Unity Software's recent stock plummet of nearly 40% following its Q1 earnings announcement highlights the impact of Machine Learning (ML) models on businesses across industries. The company experienced a major fault in their Audience Pinpointer tool, which caused a drop in the accuracy of the ML model's prediction and led to a significant loss in market value. This event further emphasizes the necessity for continuous monitoring of data fed into ML models and the predictions they generate. Comprehensive ML observability tools are essential for detecting issues, alerting stakeholders, and explaining changes in model behavior before they impact businesses and customers.