I understand all that, the question just becomes "what population growth rates are then reasonable?" What population growth would realistically happen over that 150 years?
For comparison, US population growth since 1800 has varied from 0.7% (the 1940's) to 3.3% (the 1810's), with notable dips in decades containing the major wars and a general trend of -1% per century. So the 1800's all had 2-3% annual population growth, and I was basing the 40-150 year population growth on gradually approaching half that level to account for the lingering environmental hazards, amplified social hazards, and the reduction in life-extending technologies and knowledge.
Another comparison might be the United Kingdom, which, due to it's geographical and resource limitations, saw a 0.5% annual growth rate for most of the last century. But I think that is more a product of saturation than anything else.
So:
1) Do the last set of numbers look reasonable AND in tune with the Morrow setting?
2) If not, what numbers should be adjusted?
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