My major preoccupation is the question, 'What is reality?'

Either I've invented a whole new logic or, ahem, I'm not playing with a full deck.

Why does a man cry? he wondered. Not like a woman; not for that. Not for sentiment. A man cries over the loss of something, something alive. A man can cry over a sick animal that he knows won't make it. The death of a child: a man can cry for that. But not because things are sad. A man, he thought, cries not for the future or the past but for the present.

So we and our elaborately evolving computers may meet each other halfway. Someday a human being, named perhaps Fred White, may shoot a robot named Pete Something-or-other, which has come out of a General Electric factory, and to his surprise see it weep and bleed. And the dying robot may shoot back and, to its surprise, see a wisp of gray smoke arise from the electric pump that it supposed was Mr. White's beating heart. It would be rather a great moment of truth for both of them.

What a tragic realm this is, he reflected. Those down here are prisoners, and the ultimate tragedy is that they don't know it; they think they are free because they have never been free, and do not understand what it means.

Certainly it constitutes bad news if the people who agree with you are buggier than batshit.

Basically, Sherri's idea had to do with bringing Fat's mind down from the cosmic and the abstract to the particular. She had hatched out the practical notion that nothing is more real than a large World War Two Soviet tank.