And, RIP Sir Terry. 
I'm three-quarters through his last book, Snuff. Brilliant writer, I'm gutted.

I'm three-quarters through his last book, Snuff. Brilliant writer, I'm gutted.
Well, as a matter of fact, if you're at "Snuff" then there still remains "Raising Steam" for you. (Though I think anyone has to admit the disease showed in the writing at that stage.)And, RIP Sir Terry.
I'm three-quarters through his last book, Snuff. Brilliant writer, I'm gutted.
Haven't read his work, but did know of Discworld.
RIP..
Begin with the Colour of Magic. It's as good as any, imo.
Well, we're all entitled to our opinions. I actually liked the Colour of Magic. If I remember it correctly (and I surely don't!) it sets out the stage of Disc World nicely and explains the way light moves more slowly over the landscape as the tiny sun rises over the horizon.I strongly disagree, and so did Pratchett himself. He was a harsh critic of his first two books, claiming that they lacked any discernible plot. .
I think now would be a pretty good time for those of you who haven't picked up one of his books to actually do so. Laughter is pretty good for coping.
Early onset Alzheimer AND he had the rare "back-to-front" version. He must have been suffering from it for at least a decade, considering the early stages don't necessarily register all that much, it could have been maybe twenty years even?I did not think that he was old enough (a decade younger than my dad) or that his condition was bad enough yet for him to die of natural causes. When I first read the headline I assumed it was a suicide, as he did campaign in favor of euthanasia, but the news reports otherwise. I remember that even in one of his books (I think it was Wintersmith) he had a character express his deeply held opinion that it is better to die while you still have your wits than to live on for years without memory of who you used to be. I guess he got his wish.
I haven't read any of his books, but I've heard a lot about him over the years. It's sad when favorite authors die.
Early onset Alzheimer AND he had the rare "back-to-front" version. He must have been suffering from it for at least a decade, considering the early stages don't necessarily register all that much, it could have been maybe twenty years even?
It then got progressively worse rather fast towards the end. Sounds like how people typically go from it.
The big difference being that with him, what packed up first wasn't the higher cognitive functions, like it usually is, but all that other also essential stuff, like spatial awareness. He made programs about it for British TV even:
https://vimeo.com/24875580
He was "lucky" in the sense that he was stripped of things like his memory last in the sequence, but what was being removed was also essential features to sustain life. Usually Alzheimer patients get reduced to confused, veggie-status but still quite able to move about, feed themselves, etc. It's just towards the end they become unable to walk, feed themselves etc. But with Pratchett, the disease was going to move through those bits rather before it fried his memory totally.
So, Terry P was taken the roundabout way, where the bits that typically makes us who "we" are were relatively spared for later. But the writing apparently was on the wall already several months ago, when he started to have to cancel things last summer. Neil Gaiman penned a piece about his friend back then, which was clearly a kind of farewell, so he was apparently fully aware that it couldn't be too long.
Eventually enough of the brain shuts down for it all to go fairly rapidly in the end. He was diagnosed in 2007. He died eight years later. He ended up bang on the average expected lifetime after diagnosis even.
Considering the rare form of Alzheimer he had, and when it was diagnosed, no, his death now doesn't seem particularly fishy at all.