Creativity and imagination…

Scott, a frequent commenter to my blog posts, stated in one of his comments, the following:  "It almost seems like you have to be a scientist or almost one to write good SF today!"  At the risk of taking him out of context, this is the theme of today's post.  To paraphrase Scott, how do we reconcile a scientist's no-nonsense focused pursuit of good data and elegant theories with the creativity and imagination of a master storyteller?  Is there cause and effect here?  Or, do we just have the s...