It could be that reality has nasty things in mind for us that we can't yet see and that we cannot affect in any way, and therefore I would be happier if I didn't know of them in advance. Encountering a new idea like this that somebody has discovered is one my constant worries when browsing this site.
If it's worth saying, but not worth its own post, then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should start on Monday, and end on Sunday.
4. Unflag the two options "Notify me of new top level comments on this article" and "