There is no call to be insulting. Your reference to a fairy tale talking egg is hardly helpful. It more calls into question why you are being so insistent you are right and I am wrong. My opinion is based on a long association the science fiction genre. And science it not a static thing, but it does attempt to make sense of the natural order of things. If you want to use science to differentiate one type of fiction from another, then you must have a definition of science. I listed the types of science because they are very different. My opinions have been shaped by several hard SF readers and writers. Hard SF is required to stick to just proven science. You can project forward, but only with what we know to be true. Soft SF includes the theoretical (where the mathematical proof has been established, but is as yet untested) and the plausible (where modern methods are used to extrapolate a theory for something like FTL travel, anti-gravity, etc, that has yet to be arrived at by any theoretical scientist). Star Trek's warp drive was in the plausible category back in the 60's, but now it is in the theoretical. Most of the "troupes" of science fiction are in the plausible. Things that you can imagine that if science devoted enough time to, it would become theoretical, and then maybe proven, and then maybe reality. I do not limit the realm of science by my definitions. I do draw a line between science and fantasy. Clark's comment that any sufficiently advanced technology can be mistaken for magic does not mean that the reverse holds true, that anything seen as magic can be accomplished given sufficiently high technology. I also maintain (I am again citing my own opinion) that there is no such thing as a story where science is so integral that it cannot be slightly altered and have the same story in a different setting. Stories are about people, read by people. It doesn't matter if you are talking about a hard sf story or a space opera, anything can be reset to a different time, place, or genre and will require the same amount of effort. I think science must be integral to the setting more than to the story set within that setting. Opinions are wonderful things when you let other people express theirs without resorting to insults. I have no interest in insulting anyone here and I expect the same in return.