So why is it that I and many other biologists hypothesize that introns are mostly non-functional?
(I'll assume that you've read the
previous posts, and that you understand what it is that I mean when I challenge claims that introns are functional elements in an information-rich genome. And to avoid confusion, I'll speak only for myself, although I surmise that a tiny minority of biologists would agree with creationist characterizations of the human genome.)
Here are the basic data that lead me to conclude that intron sequences are mostly dispensable for biological function. I've provided links to key references, and we can go into more detail in further posts or in the comments.