dhaugshs

Penis in vagina. It's a specification. It's like "birthing parent", to be clear what hardware is being used.

Given that HIV infection rates are very variable (over an order of magnitude, sometimes two) by subpopulation, clarifications detailing what hardware is doing what are very necessary.

But, since there is a finite number of 400 page books, there are only so many permutations before you run out of books.

The most trivial example, you cant make an 800 page concatenation of two identical books because the 400 page library doesn't contain duplicates.