yes nearly all people with cf die from it but the average life of a cf person is up to 36 and gets higher each year and there are people on this site with cf that are in their mid 50s maybe some even older, and nearly all of the treatments used today have only been around for about 18-20 years at the most, lots newer. if they can come up with that many treatments in that short a time (for something like cf, that is a very short amount of time) think about what they will have in another 20 years