Vi Hart - Doodling in Math Class: Infinity Elephants

Am having a massive Vi Hart moment...
She's like a one-woman Khan academy armed with attitude and felt-tips. (and channeling Thora Birch circa GhostWorld)
and she's not afraid of saying - "there are kinds of infinity that are kind of mind-bogglingly infiniter"

And then go to her site and donate so she can keep going (and redesign it)::
http://vihart.com/