A father's story: birth, death and a life in the balance

A doctor asks you and your brother if he can talk to you outside, and then he explains in a forceful way that your mother's death, which at bedtime a few hours earlier had not even been a remote likelihood, is now likely imminent, then your brother, an engineer, trying to comprehend, asks some comparative questions about blood flow and the principles of basic hydraulics.

Then you aren't really sure whether she's alive or dead, but the sudden absence of everybody in the room who was there just a minute or two ago trying to save her, suggests to you that she's probably dead.