This is lecture 23 in the series "Introduction to the Mathematics of Climate" offered at the University of Minnesota in 2014 with the support of MCRN and The Institute for Mathematics and its Applications.

This lecture refines the question "can we predict the future?" to the more relevant questions "What Part of the Future Can’t We Predict? The Solar System? Statistical Mechanics? Weather? Climate?" Longterm dynamics of the solar system are discussed. An analogy to statistical mechanics is proposed as hope for predicting climate out of chaotic weather. Aspects of climate that probably can and probably can't be predicted are presented.

1. chaos
2. climate
3. climate change
4. conceptual models
5. Dynamical systems
6. education
7. environment and society
8. graduate students
9. physics
10. undergraduate