Buggerit Millennium Hand and Shrimp

Terry Pratchett has been diagnosed with early onset Alzheimer's. The announcement on Paul Kidby's website shows he hasn't lost his wit though:

I would just like to draw attention to everyone reading the above that this should be interpreted as 'I am not dead'. I will, of course, be dead at some future point, as will everybody else. For me, this maybe further off than you think - it's too soon to tell. I know it's a very human thing to say "Is there anything I can do", but in this case I would only entertain offers from very high-end experts in brain chemistry.