Explore the critical issue of data retention and deletion in this thought-provoking conference talk. Delve into the dangers of hoarding data in an era of cheap storage, and learn why automated de-acquisition and deletion are crucial. Examine how data deteriorates over time, losing its relevance and connections, and how excessive data can be as problematic as insufficient data. Investigate the risks of building predictive models on outdated or low-quality data. Discover practical strategies for managing data lifecycle, including implementing data retention policies, automating deletion processes, and de-duplicating information. Consider the ethical implications of data storage and the importance of respecting human rights in data management practices. Gain insights into the balance between preserving valuable information and responsibly discarding obsolete or potentially harmful data.