A physics lecture for non-physicists. 
Title: Gravity, the Improbability Engine.
Speaker: Yasha Neiman.

Life in the Universe runs on a budget of improbability, which is gradually spent over time. What generated the initial budget? Gravity did.

Also features:
1. The three Cosmic Currencies: energy, improbability, and cleverness.
2. Improbability engines powered the Industrial Revolution.
3. What we get from the Sun isn't energy, it's improbability.
4. Why are atoms so small? Why are stars so big?