Participated in another Mind Meld at SF Signal. This one is a reworking of post of mine from a few weeks ago on the plausibility of science in science fiction.
These Mind Melds are fun. Gives you a chance to write and think about a particular genre at the same time.
So go to the link above and enjoy all the pieces on the subject. Weigh in there or here.
By the way, the particular question was mine, too.