C S Miller writes "Not much more to add.
The BBC is reporting that 'Stephen Hawking is "very ill" in hospital.' He has had a few health scares before, and as a post-graduate he was told he didn't have much longer to live; he's now 67."
I have yet to see any problem, however complicated, which, when
you looked at it in the right way, did not become still more complicated.
-- Poul Anderson