What would it look like to graph your attention?

Chris has got me pondering what an attention graph would look like, after reading his thoughts about Internet, Social, Interest, Taste, Financial Trust, Local, and Endorsement graphs.

Maybe, in an attention graph, the nodes are attention sources, and relations are time? But then, the relations would have to be measured in a zero-sum game?

I’m still just thinking out loud here, so I’d love someone smarter than me to help out in the comments.