This is true for books and other sources too. I remember reading that really popular sleep book, then going and looking at the papers it cited and seeing the fi

This is true for books and other sources too. I remember reading that really popular sleep book, then going and looking at the papers it cited and seeing the first one I read showed the 7 hour bucket had lower all-cause mortality than the 8 hour bucket. I also remember an article posted on HN at the start of the pandemic that claimed masks were ineffective, but as proof cited a study that showed the best mask fabric blocked 99% of aerosoles and the worst blocked 20%.