Science, Health, Viruses.
library is so huge (25¹³¹²⁰⁰⁰) that it exceeds the number of atoms in the universe (itself, a respectably large 10⁸⁰, or approximately 25⁵⁷). There are comparatively so few atoms in the universe that the number of books that can be assigned to each atom is, within rounding error, simply the total