My original Immortal Iunet ran for many hundreds of years without intervention, but it has some faults. I'm thinking of rebuilding it with 3 significant improvements: making it stable for longer (hopefully, tens of thousands of years) without intervention, reducing (hopefully, eliminating) "ghosts", and having no crummy houses.
The original collapsed because, rarely (twice in 3000 years), a bazaar buyer waited for months longer than usual before leaving to get luxury goods. Building redundant bazaars should make the problem much less frequent.
Ghosts are people who live 100 years and therefore disappear from the population (becoming immortal) but continue to reside in houses. In the original, ghosts formed irregularly, averaging about 0.01/year. More people should reduce ghost formation. In the original, there appear to be at least 20 people in the age range of 70 to 79 years (which usually includes the oldest people). Assuming that the death rate of those people at Average city health is 25%/year (asTrium reported for C3), I think it likely that increasing the population by one-fifth (from 12000 to 14400) will prevent ghosts after the demographics stabilize.
In the original, over half of the people live in sturdy huts, to keep city health at Average. However, if everyone lives in a meager shanty or better house with physician coverage, city health should be at least Good. To keep city health at Average with no huts, some houses will not have physician coverage. Those houses must be at least spacious apartments (with mortuary coverage) to prevent disease at Very Hard difficulty. We might as well make the poorest houses common residences, to squeeze more people into each house and to put 2x2 houses anywhere we choose.
[There have been changes over the years as we learned more. The current design (with good city health) and its construction begin in reply #19.]
The original collapsed because, rarely (twice in 3000 years), a bazaar buyer waited for months longer than usual before leaving to get luxury goods. Building redundant bazaars should make the problem much less frequent.
Ghosts are people who live 100 years and therefore disappear from the population (becoming immortal) but continue to reside in houses. In the original, ghosts formed irregularly, averaging about 0.01/year. More people should reduce ghost formation. In the original, there appear to be at least 20 people in the age range of 70 to 79 years (which usually includes the oldest people). Assuming that the death rate of those people at Average city health is 25%/year (as
In the original, over half of the people live in sturdy huts, to keep city health at Average. However, if everyone lives in a meager shanty or better house with physician coverage, city health should be at least Good. To keep city health at Average with no huts, some houses will not have physician coverage. Those houses must be at least spacious apartments (with mortuary coverage) to prevent disease at Very Hard difficulty. We might as well make the poorest houses common residences, to squeeze more people into each house and to put 2x2 houses anywhere we choose.
[This message has been edited by Brugle (edited 10-29-2016 @ 11:43 AM).]