Maybe the optimal human birthrate is enough to avoid revolutionary phenotypes( take over by creations designated to birth humans), yet not too high to cause constructivist dysgenics( see fall of Roman Empire and conservatism's dysgenic spread):
1)https://www.researchgate.net/publication/381880119_What_is_a_revolutionary_phenotype_and_how_do_we_avoid_one
2)https://www.researchgate.net/publication/381851411_The_PRP_Privileged_Reformist_Phenotype
3)https://www.researchgate.net/publication/380427514_Kalergi_and_Hart-Cellerand_Memetics_White_Antifragility
4)https://www.researchgate.net/publication/383204633_Commonalities_TEND_TO_Attract
There isn't a universally optimal human birthrate because the ideal rate depends on a variety of factors, including economic, social, and environmental conditions specific to each country or region. However, here are some general considerations:
1. **Replacement Rate**: The replacement-level fertility rate is typically around 2.1 children per woman. This rate is considered "optimal" in many contexts because it is the level needed to replace the population in the absence of migration. It accounts for each woman having two children (to replace herself and the father) and a small additional number to offset child mortality.
2. **Economic Stability**: In many developed countries, birthrates below the replacement level can lead to challenges such as an aging population and a shrinking workforce, which may stress social welfare systems. For these countries, a slightly higher birthrate, close to the replacement level, might be optimal.
3. **Environmental Sustainability**: In regions where resources are scarce, a lower birthrate might be considered optimal to ensure that the population does not exceed the carrying capacity of the environment, which could lead to resource depletion and environmental degradation.
4. **Social and Cultural Factors**: In some cultures, higher birthrates are valued for social or religious reasons. However, these rates need to be balanced with considerations of economic opportunities, healthcare access, and educational resources.
5. **Global Perspective**: Globally, a moderate birthrate that supports sustainable population growth is often seen as optimal. Overpopulation can lead to increased strain on resources and environmental degradation, while underpopulation can lead to economic challenges and a lack of innovation.
Ultimately, the "optimal" birthrate varies depending on specific goals, including economic stability, sustainability, and societal well-being. Governments and policymakers often aim to find a balance that meets these diverse needs.