First, let me explain something. I read about half of the Gor novels when I was younger, mostly out of order and over a period of years. Not too long ago I came across all the novels, so I figured I'd read the whole series in order.
The cultures didn't change because the aliens in charge prevented them from changing. There were rules spelled out detailing what people could and could not do. For instance, they couldn't experiment with improvements on weapons or transportation. Violators were killed. Also, keep in mind that this IS fiction, so it's possible from a fictional standpoint.
Also, I think the last bit is true. I read "Explorers of Gor" not too long ago. Norman was very careful that NO white person owned a black person. If he was actually racist, I would think that his protagonist wouldn't have sex with ANY other race, but that isn't true. Tarl Cabot owned and had sex with Indians, Asians, Arabs, Eskimos, and many others.
Re: Dull and racist
The cultures didn't change because the aliens in charge prevented them from changing. There were rules spelled out detailing what people could and could not do. For instance, they couldn't experiment with improvements on weapons or transportation. Violators were killed. Also, keep in mind that this IS fiction, so it's possible from a fictional standpoint.
Also, I think the last bit is true. I read "Explorers of Gor" not too long ago. Norman was very careful that NO white person owned a black person. If he was actually racist, I would think that his protagonist wouldn't have sex with ANY other race, but that isn't true. Tarl Cabot owned and had sex with Indians, Asians, Arabs, Eskimos, and many others.
Oh, by the way, thanks for answering.