Cake crumbs, like money, can be divided into fractions of any size. (blog.politics.ox.ac.uk)
But since perinatal deaths are a rare event and since the homebirth group is only a tiny fraction of the size of the hospital group, subtracting even 1 one homebirth death has a major impact on the homebirth death rate. (skepticalob.com)
LIGO compares the arms» sizes using the laser light to measure length differences a tiny fraction of the size of a proton. (sciencenews.org)