I can't imagine writing a book without some strong female characters, unless that was a demand of the setting. I actually tend to suspect that in real life, there have always been very strong female characters, but at certain stages of society, they've been asked to cool it.
William GibsonAddictions [...] started out like magical pets, pocket monsters. They did extraordinary tricks, showed you things you hadn't seen, were fun. But came, through some gradual dire alchemy, to make decisions for you. Eventually, they were making your most crucial life-decisions. And they were [...] less intelligent than goldfish.
William Gibson