There was a post on Slashdot today arguing that "Aging is a disease and we should try to defeat it or at least slow it down".
The comments are full of deathism: many people apparently sincerely coming out in favour of not just death (limited lifespan) but aging and deterioration.
Everyone who doesn't feel in their gut that many (most?) normal people truly believe aging and death are good, and will really try to stop you from curing it if they can, should go and read through all the comments there. It's good rationality training if (like me) you haven't ever discussed this in person with your friends (or if they all happened to agree). It's similar to how someone brought up by and among atheists (again, me) may not understand religion emotionally without some interaction with it.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.