Our Economy, Centralization, and Hierarchy have all increased by one. It's not a big change, but it's better then nothing. We should keep an eye on Centralization, though. I think we're close to the limit.
We are yes. It's forcing the elders to accelerate development of writing and become an administrative class.
Fortunately people are currently fairly favorable to the idea, since it just saved them from disasters. Dissatisfaction with overcentralization had been mitigated by our high centralization shielding us from the plague(being able to have the Super Big Man order a quarantine is something nobody else had, and similarly the food stockpiling and emergency drainage ditches, etc).
Plus our current Super Big Man is an Administrator, so he can handle the load a bit better.
The Three People:
We've been busy reorganizing our government, setting up a High Chief with a bunch of lesser chiefs to assist him. I'm really happy that we're actually taking steps to prevent nepotism by making sure that no one tribe can gain too much power. We're establishing a payment system of sorts consisting of food and luxuries, which is kinda interesting and might lead to a monetary system in the future. However, a side effect is that enterprising/lazy individuals have realized that they can get more payment for less physical work by providing entertainment (prostitution and gambling), which is something to keep an eye on in case it leads to social issues later.
Then the weather turned to shit and plagues began to pop up. Fortunately, we survived more or less intact as we had the food stores to spare and our developed infrastructure blunted the worst of the damage. Our High Chief also acted decisively by restricting travel into the diseased areas and quarantining anyone who fell sick. While not 100% efficient, this stopped the disease from spreading and probably saved us from a catastrophic outbreak.
Currently, we're doing pretty well. While the lowlanders got completely shit on by the weather and disease, we've survived and are stronger then ever. Hell, we've done so well that we're actually thinking of starting a great project (dam or canal) while everyone else is still trying to recover from the floods/droughts/plagues.
I'd probably keep an eye on the development of the chief system in the years to come. Once the tribes start to blend together the previous constraints on the heir being non-hereditary and non-tribal is going to be harder to make stick. But that's the nature of power. It likes to gather more power.
And I think our great project is less reflective of how well we're doing and more that it's possible due to our combining three tribes into one though.
Basically we've hit the critical mass of centralized power that we can afford to feed a large number of people to do one project, that simply wasn't possible at lower centralization, since you need to coordinate dozens of people over several generations.
The Spirit Talkers
Ok, I think we want to talk to these guys at some point. They're either the real deal, are somehow super lucky, or have some way of predicting the weather. In any case, they've gotten a huge boost in prestige lately since all the other tribes think they were responsible for fucking up the weather and wiping out the lowlanders. Even if we don't get involved, I'm guessing that most of the lesser tribes are going to be sending tribute of some kind. Heck, our own people want to send tribute because they're a bit scared of what might happen.
I don't think that they're a threat from a military standpoint, but there's a growing chance that they'll just try to pressure us into serving them eventually. They're actually more dangerous then the lowlanders because our people will fight to the bitter end to avoid slavery but aren't as likely to put up much of a fight if a bunch of spirit talkers go "Hey, if you give us food we'll totally protect you from the spirits!". We can either join them willingly or try to resist by setting up our own religion and culture. I'm leaning towards the latter, which means we should pick options like dedicating a place to spirits or establishing annual festivals to resist cultural assimilation.
Currently, they're also doing well. They've wiped out their biggest threats, scared the crap out of everyone else, and are now doing the equivalent of kicking back and relaxing on their sofas and watching all the people come over to drop tributes at their doorstep. I expect that they'll be looking in our direction next, if only because we're such a big group that allying/taking control of us will be a massive boon to them.
Since they've done the religion thing from the start, their meteorology should be unusually good, even if it's in the form of omen reading at present.
I think they truly believe they can influence the weather, but that they've also seen such a pattern forming(read: the will of the spirits), and have been sacrificing in the hopes of directing some of that.
The outcome can be natural, just be aware of the weather, stockpile the food that people have been gifting them(biased towards less perishable food too, since they need to travel and won't bring the stuff that rots fast), and have a well fed force of warriors who didn't need to farm(what with all the gifts) to raid when the signs finally come to pass.
Whether it actually works...*shrug* more interesting if it's mysterious.
Lowlanders
Got rekt.
They only just started to crawl back to their previous numbers when the whole flood/drought/plague hit. Since they didn't have our organization and food production capabilities, they got more or less annihilated. To add insult to injury, the spirit talkers (or us, it's a bit unclear) sent their warriors into the lowlands to pillage, burn, and kill anyone they could find, sealing the deal and ensuring that the lowlanders won't be a problem anytime soon.
Currently, the lowlanders are reeling from all the damage they've taken over the last ten years. They might just dissolve into a nonentity at this point, but even if they do recover, it'll be generations before they can become strong enough to threaten us. At this point, they're more or less finished.
Just the Spirit Talkers.
Now might actually be a GREAT time to start up diplomacy with them, someone else kicked their face in for us, so we can do the missionary thing the next expedition turn?
They'd be receptive to new ideas due to being in such a weak position, their sacrifices of people not working to save them and being stomped by the foreigners is a massive blow to their cultural pride.
Now would be a good time to go down there and see if we can sell some food and flip some over.
First of all, I want to talk about our MEGA PROJECTS. I'm really excited to see these as they represent some fairly significant benefits if we can complete them. Right now we have Grand Canal and Great Dam.
Grand Canal - allows us to control the river, giving us a fast route between our valley and coastal villages. This will boost trade, help control the flooding, and is relatively safe compared to the dam. However, it will require a massive investment in manpower and materials since the river is so big.
Great Dam - building a dam will likely take less time and effort compared to the canal since we only need to concentrate on one area instead of the entire river. Constructing this allows us to maintain a safe and constant freshwater supply and mitigate any more flooding and droughts. However, if the dam collapses, it could cause a lot of damage in the surrounding areas.
Both of these are good, but I'm not sure if we need them right now. It might be a good idea to set up our infrastructure first by Organizing the Villages and what not.
Mentioned some precautions to take before the Great Dam. We need a LOT more prereqs to do it safely.
-Experience with planned constructions(Organize settlement)
-Geographical safety buffer to strengthen the soil and tank any failures(Expand forestry)
-Experience with larger scale construction(Build Walls and Great Canal).
-Experience with water load(Great Canal)
-Better masonry(Build more shit to practice)
-Better administration(Organize Settlement or any government improvements)
-Better meteorology would also help anticipate droughts/floods so we know when to vent the water and when to save it up(Expand intellectual caste)
We already have experience with storing standing water so we don't need to worry about fouling it.
But it'd also have synergy with expand fisheries and Domesticate Sea Snail, since we can use a dam to farm fish inland as well.