I needed some joy in my life today...

The link is to a TED Talk called "Dance vs. Powerpoint, A Modest Proposal" by John Bohannon.

http://www.ted.com/talks/john_bohannon_dance_vs_powerpoint_a_modest_proposal.html

As a bonus, I now feel like I grasp the basic concept of superfluids.

Just beautiful.

Warning that it is very visual.