The key questions are:
- Assume 6 degrees increase by 2100. (>10 percent probability) Assume mass famine and displacement of people. What would be the impact on population? 9 percent, 99 percent or 100 percent decrease? In fact there is nothing that could simulate these events. Compare it to covid, the figures went up exponentially and there was no single model that could simulate today's situation, just a few years later.
- What will be the state of technology in 2043? Impossible to predict, let alone in 2100. I believe science and technology is really the key factor determining our future.
- With mass death rates, how will the human genome respond? Quite impossible to predict (crf covid mutations/human immune system adaptation)
It is clear the climate situation is bad and getting worse (cfr covid times). But there is no model that can predict the state of human kind 20 years from now.