"Like other sentient beings, [Jane] had a complex system of consciousness. Two thousand years before, when she was only a thousand years old, she had created a program to analyze herself. It reported a very simple structure of some 370,000 distinct levels of attention. Anything not in the top 50,000 levels was left alone except for the most routine sampling, the most cursory examination.

Jane's top thousand levels of attention were what corresponded, more or less, to what humans think of as consciousness. Most of this was her own internal reality; her responses to outside stimuli, analogous to emotions, desires, reason, memory, dreaming. Much of this activity seemed random even to her, accidents of her philotic impulse, but it was the part of her that she thought of as herself, it all took place in the constant, unmonitored ansible transmissions that she conducted deep in space.

Compared to the speed at which the human brain was able to experience life, Jane had lived half a trillion human life years since she came to be.

And with all that vast activity, her unimaginable speed, the breadth and depth of her experience, fully half of the top ten levels of her attention were always, always devoted to what came in through the jewel in Ender Wiggin's ear."
-Orson Scott Card, Speaker for the Dead-

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