No problem, now i guess it's me that must thank you in turn, after all i had a very busy week-start and didn't show up in the forum at all until now
, i do apologize for the essay-like text, i got out of hand there somewhere (noticed halfway through i was a hour and half writing).
I think it's a fair notation, but also part of what i followed back in the post you replied about how nomads
need trade, contrary to popular belief, it's almost impossible for any nomad-based state to survive solely on having nomadic populations under its belt, it needs sedentary towns to produce key products if it wants not to be in the Stone Age technologically. It just so happens that Khazaria was in the middle of the busiest landway of the richest trade route in the World at its time, so this category blows up to eleven, but it's not quite that trade encourages agriculture as much as trade encourages people, and people who trade usually have to do it somewhere, and then you have cities, and cities need to be fed, so at least low-scale agriculture is done by some peoples under nomadic control in order to trade go fluidly - Almost a circle event.
I have toyed a bit with the idea, and i think it's solid. Horses surviving in the Americas probably would result in an earlier (than in Eurasia) domestication of the animals, because it would be the most natural domesticate in an area expanse that would feature a lot of people, although i think 8500 BCE is a bit early if i'm to be honest, a little later than the llama perhaps would be better (IIRC it was around 7500 BCE, but i could be wrong, ain't checking it right now), so a date of around 6000-5000 BCE would fit best, for one, it would be quite a lot of time for the horse to spread domestically.
It does, although my problem with your earlier statements weren't much about realism per se, but about some pointed flaws in conceptualization. As we can attest after seeing how much we agree on stuff, it was mostly about the process than the ends.
I can actually speak upon this on eurasian experience, well, the reactions to "hey we're being attacked by the people with the horses" by still hunter-gatherers was usually to try and adopt the horse too, because well, they're as nomadic as the horse people, they're just...Horseless.
Being raided by horsemen usually disencourages sedentarism more than it encourages, mostly because staying still and farming makes you a certified top target. If you're already a farmer, of course this won't make you stop farming immediately, but if you're still a hunter-gatherer, this may just disencourage further from transitioning to farming. But in this situation, i think that the mathematical two negatives make a positive, because it means that any hunter-gatherer group that does not adopt horsing is doomed to be sidelined into marginal lands in the hills, where, well, do they have any option other than agriculture? They might die elsewise if their hunt-gather range is sufficiently small. Then you could see a Papuan-like spread of agriculture from the hills to the plains as the hill people (that eventually do get to adopt the horse) overpopulate and migrate towards the valleys.
I believe that horse domestication in the Americas would probably tag-along (not necessarily directly, but there's
@Huehuecoyotl 's timeline where a camelid caused it directly) sheep-like, or else, herd-like domesticates for its users, maybe even the bison itself. Mostly because i believe that domestication is kind of a exponential game, you get to domesticate "naturally" some grazers that get symbiotic with humans, then your people actually conceptualize domestication, and now you have the push to specifically go after domesticating animals, which i might say, can be way more simpler than expected (you just have to breed out wild traits in a controlled population) or way more difficult/complex than expected (different animals have different breeding time, practices, you might want to breed different aspects for different animals, etc...).
I actually think this is an interesting point, i've seen the "matrilineal lines are better because you can't disprove motherhood" argument before, but when you think about how this would fit a true, state-level modern society, you start shooting for examples and, uh, it's kinda hard, our best reflexes IIRC are some austronesian and african cultures (that if i remember well, do in some cases have the "reduced stigma around children born out of wedlock", but i could be talking shit, not my field at all), i also am quite the believer that it could be the case in Minoan Greece, not only from the archaeological record but also by what can be glossed from greek myth. The thing is, none of these both left extensive records while at the same time reaching the level of a uber-complex state society, so it is enticing.
I find this timeline acceptable, on a first view at least, out of curiosity though, what is up with agriculture in the Rio Grande? I ain't quite acquainted with the region's history, so my knowledge is mostly based upon the fact that post-contact the estuary's inhabitants were hunter-gatherers.