Most reviews I've seen consider it such. Personally, if an author's done enough research to support most every detail with at least one or two scientifically p

Most reviews I've seen consider it such. Personally, if an author's done enough research to support most every detail with at least one or two scientifically plausible explanations (and has the personal scientific background to vet those ideas), I'll give their work the benefit of the doubt. Between ultimately still just being a work of fiction and the march of scientific discovery, you have to give some small leeway. Regarding the right angle thing, it's been long enough since I've read Blindsight that I can't recall how much was actually explained in the novel vs in the FizerPharm presentation or other material on Watts' website. If you're willing to include extra-textual content, Watts' vampires are given as hard a science fiction treatment as any classic monster is likely to get...