MacKenzie Scott's Giving, in Quality-Adjusted Life Years (QALYs)

# Summary MacKenzie Scott has donated over $26 billion since 2019 across 2,700+ grants, and researchers have created a model to estimate the health impact of her giving in quality-adjusted life years (QALYs)—a metric used to compare lives saved against improved health outcomes. The model estimates her giving generates between 70,000 QALYs (using skeptical weighting of study quality) to 200,000 QALYs (accepting all cited effects at face value), with the uncertainty in study methodology being the main variable rather than the dollar amount itself.