I removed the assertion "science fiction is a genre for and by adolescent boys"- that's just silly. I agree that teenage boys constitute a fair portion of the readership, but I suspect the authors are a bit more grown up than that. Also I found the article sexist - it runs both ways. Neither anti-male nor anti-female tone is welcome. - MMGB
Women did not "first begin to enter Science Fiction" in the 1960's or 1970's. Frankenstein has been called the first science fiction novel and was written by a woman in 1818.