This may be Vinay's best video, and that's saying something.

Given this was inspired by USPTFs decision to add women in their 40s to these recs, it's probably helpful to look at some hard numbers. According to the CDC wonder database, there were a total of ~3000 breast cancer deaths annually from 2018-2020 in this age group, in 20 million individuals. Even by optimistic assumptions, the ceiling on number of lives saved by screening this age group is something in the hundreds, annually. This mean…