FYI, supersymmetry also used to be talked about a lot as a way to solve the problem of the flatness of the universe. With all the quantum fields out there, they all have huge vacuum energies associated with them which, if we believe general relativity, should immensely warp spacetime into a wrapped-up curving mess. But if you have exactly symmetric bosonic and fermionic fields, everything exactly cancels out and you're left with no vacuum energy at all, and a perfectly flat universe. I guess this has become less of a concern since we discovered that the universe is NOT perfectly flat, but filled with a (MUCH smaller, like 10200 times smaller) amount of vacuum energy after all, which we call Dark Energy. Perfect symmetry doesn't do so great a job of explaining a slight asymmetry.
Anyways, the video was fun and I think you did a really good job especially of explaining to people what physicists, as opposed to everyday language, mean when we talk about a symmetry. If you have time, it'd be cool to follow up with a video explaining discrete vs. continuous symmetries. Get the sharpie out again and draw a circle :)
If you care to come check out and rate my videos, they're the A Capella Science ones. Have a lovely day!
-Tim
