Abigail (she/they)

Thanks for the link to that book, it looks super interesting.

There’s no one thing that defines sex, that’s what makes it so complicated. What is often thought of as “biological sex” are two clustered sets of checkboxes (e.g chromosomes, genitalia, secondary sex characteristics, primary sex hormone), but people often have a mixture from both lists. Here’s an interesting nature article on it https://web.archive.org/web/20250406095942/https://www.nature.com/articles/518288a