A study by professors Kane and Reardon from Harvard and Stanford show kids have fallen behind and not recovered by mid 2023 from the effects of school closures and pandemic illness in families. On average kids have fallen behind by half a year in math and a third of a year in reading by mid 2022 for 7800 communities in 41 states in the US that are in the study. Disturbing is that in the poorest 10% of districts children have fallen behind by one and a half years from the national average average for the year in school making existing inequalities worse. Another finding learning loss was similar within communities for both lower income and higher income students. Some of the hardest hit communities- Richmond, Virginia, St Louis, Missouri, New Haven Connecticut where students fell behind by one and half years in math. At 150% of teaching effort it would take 3 years to make up for the loss. The $190 billion in pandemic money from president Biden's programs to add tutors and school staff has helped recover 25% of the loss. They suggest using other help including summer camps, an optional fifth year of high school, summer learning, museums, and online learning. "If we fail to replace what our children lost-we not the coronavirus will be responsible for the most inequitable and longest lasting legacy of the pandemic" say Kane and Reardon. ...