What is time? No, really, what is it? A dimension of space-time, says relativity, but is it physical? Or just mental? Why does it seem to move forward and not back? Does the universe acknowledge the arrow of time that we experience? How big is time? Does our notion of "now" h …

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Despite living in NYC, I was not at the World Science Festival last weekend, which totally bums me out, especially since Irene Pepperberg was there, speaking, and Snowball, a male Eleanora (medium sulfur-crested) cockatoo, Cacatua sulphurea eleonora, was there, dancing.

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