It's also inherent in the system for realistic reasons. Short-lived things breed faster, longer-lived things breed slower. It's the way biology/evolution happens to work. Not arbitrary.
Also, at a certain point of 'short-lived' they don't have the necessary lifespan to learn life-skills and develop sentience well. It's not a fast process, coming to understand the world around you and figure out how 'thinking' works. Takes time.
Also, yeah, Industrial Revolution was in swing. And immigration, as I said. On the other hand, there's a crapton of new land to cultivate as well, which was why I was trying to use America. It's rather difficult doing these sorts of population growth analyses, since we don't actually have anything historical to compare it to, not really; our current situation is basically; massive excess of land(overcrowding and space not an issue), no immigration because closed system(thus all growth comes from Divine Intervention or natural birth rates vs. death rates), medieval level technology, and uh, the most important ones of all: fantastic races(in the fantasy sense) whose anatomies vary widely, and magic.
And Stirk: You're right, it's not. However, I wasn't trying to do it without context. I'm using wikipedia(blah blah not valid source blah it's close enough for our purposes, given the automatic inaccuracy from a fantasy setting), and the human race's population was about 3-4 Million, from what I'm looking at, from around 10000 BC to 5000 BC, with the (large-scale, at least) terrible organization and technological levels back then. After which, it rose rather steadily to 50 Million over the next 4000 years. And yeah, sure, this is sorta evidence for your point, but A. Magic B. Other races with which to trade with to create a larger and thus more advanced functional economy C. Higher tech levels(pretty sure, anyway), and most importantly
D. Humans were created, with I think 3 million of them, somewhere around ticks 6-15. It is currently tick 93. I asked somewhere around tick 90. If a tick is on average, say, 10 years, which is a low estimate, I feel, that's about 800 years. If a tick is, say, 40, though, it's more like 3,600. For which the growth certainly makes sense, if compared to real life data.
But again. Magic, and other races. But, you guys have a point; it's not as tremendous a deal as I thought, though with the population being ~100 million at this point, population growth should begin speeding up objectively(not proportionately, that is) if we can keep from massacring any races.
Although in this searching I found the part of the game mechanics saying that just trying to increase fertility with blessings is actually counterproductive. Well then. Back to the less-cop-out methods.
Sidenote: Luminee blood only lasts a certain number of generations, if I understand it right; it doesn't make full-blooded Luminees(besides the point, blargh).
What I was wanting to say is this: This game is not a closed system. The fact is, KJP's natural prejudices, and ours, will seep in. And that's not necessarily bad. We are shaped by our culture. (When I say natural prejudices, I mean the cultural associations we have for things, particularly in fantasy games; Humans are usually the most common race in fantasy games, so they're the most common race here. They're also the one which is probably easiest to understand the thought processes and culture of, and that's difficult enough as it is. They're almost always the baseline, and that's for a reason. It's what we are. It's what we have to scale off of. So it's not about what we specifically did or did not do. In fact, you guys were vague enough that if anything would be a surprise, it would be that there wasn't more stuff leaking in without knowledge. Although maybe there is, for instance, Humans being so susceptible to Void Corruption(might have to do with being unaligned, actually).