I found this video, which takes the viewer through an explanation of the ten possible dimensions, over at the Holy Cow blog, where there are some observations about how thinking about different dimensions / possibilites could be useful for marketers.

However, I'm posting it because it made me think in a way that I haven't done for a while - figuring out something that I've no real previous knowledge of and making the brain do some gym in the process. Must do it more often.

There'll be a test on elementary string theory on Friday.