Episode highlights br 1. The cosmic calendar: Illustrates the vastness of space and time, and humanity's brief place in it br 2. Blombos Cave: Shows how Homo sapiens first expressed themselves with art br 3. 17th century Holland: Explores the freedom of thought and exchange of ideas between the old and new worlds br 4. Evolution of plants and insects: Shows how bees and plants work together to benefit each other and humans br 5. The Ship of Imagination: Travels to Venus to explore the history of global warming and climate change br 6. The future: Contemplates what lies ahead, with a hopeful vision for the future of Earth. br br Follow for more videos.