Jan. 5th, 2012

eclectic_boy: (Default)
Some rather-rambly thoughts on an SF concept I haven't seen before:

I was thinking about how the structure of families and the relationship between parents and children is tied to both our lifespan and to our period of sexual fertility. Humans (and lots of other creatures) are fertile pretty much from the moment they grow into adults, even a bit earlier. Indeed, that's a plausible definition of when a person has become an adult. And they stop being so well before death (on average).

Now, playing around with that may be evolutionarily unbelievable, but given that advances in technology have allowed humans to greatly increase the prevalence of other characteristics that are way unfavorable from a purely evolutionary perspective (as my 20/500 eyesight reminds me constantly) I'm not going to let that stop my speculating. Note that I'm not going to give an explanation for *how* this would come to be -- that can be worked out later if the speculation leads to interesting places.

So for the moment let's just accept that humans still have an 80-year-ish average lifespan, and that fertility starts around age 70. From late teens until then you're adult in every way except sexually. What changes happen to people? To families? To society?

Here are my ideas and questions )

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