STILL MORE ON THE GENERAL SUBJECT OF LIVING WILLS

I’m a little reluctant to get further into it, but there are indications of a shift taking place in the understanding of the condition known as “persistent vegetative state.”   That’s a term used in the Arizona form of living will.  This blog post at Instapundit (but by a guest blogger, not  the Instapundit himself) suggests that some people who have been diagnosed as in a persistent vegetative state are in fact aware of their surroundings and able to respond to questions.  
It sounds like a developing area that needs further attention, but I wouldn’t say it should dissuade you from signing a living will.