To calculate the population in 2069, I need some additional information, such as the initial population and the rate of growth or a specific growth model (like exponential growth). Could you provide more details or clarify the question?

Let me know if you need help with any other aspect, or if you have questions on growth models.

Here are 5 related questions to expand on this:

1. What is the current population you are starting from?
2. Are you assuming a constant growth rate or variable growth?
3. Do you want me to use the exponential growth model to estimate the population?
4. Is there any specific region or country you want the population for?
5. Do you have any specific data source for the growth rate you're using?

Tip: The exponential growth formula $P(t) = P_0 \cdot e^{rt}$ is useful for estimating populations over time, where $P_0$ is the initial population, $r$ is the growth rate, and $t$ is the time in years.