I have lots of sympathy for people , like Sven, who are in a position where there is no cure or hope of one.
The other, more philosophical view, is that few of us know when our time is up and if we did what would we do differently ? More hours at the office perhaps ? Spend more time at the football ?
With the dubious advantage of being given a time frame at least he can get his life in order, do the things he hasn’t yet done . Say what needs to be said to those around him.
Sven has , AFAIK, had a rich life and no one is immortal, except perhaps Cliff Richard, so I won’t shed too many tears for the man. I wish him a peaceful end of life .