Debate on the pursuit of happiness: internal or external? Pleasure or satisfaction? Experts in diverse fields discuss issues.

Documentary about the popularity of cannabis.

Treating vets with complex combat injuries including traumatic stress and brain injuries.

Issues of disclosure, accepting products and gifts from companies, advertising standards and more in this thoughtful panel discussion of what makes an ethical blogger and why it matters.

Winner of the Mind the Difference video contest, this art film remixes math philosophy, music, and time to comment on social convention and madness.

The difference between confidence and expectation, and how it can affect your golf performance.

Drive and motivation – what makes people work, and work better? Portion of an RSA lecture, remixed with hand-drawn animation.

Finalists in the Mind the Difference video contest, ready for viewer voting.