Recent PISA results indicate a significant setback for Portuguese students, with some learning areas regressing nearly 20 years. Miguel Herdade analyzes the factors contributing to this decline, pointing to the impact of the pandemic and existing educational policies. The study reveals a concerning trend in student performance across Portugal. Herdade's analysis seeks to understand the root causes of this regression and potential solutions. The findings prompt questions about the effectiveness of current educational strategies in Portugal. Further investigation is needed to mitigate the damage and improve future learning outcomes for students across Portugal.