I always wanted to be a writer... 'Critical Care' was my first published work. I was 34 when it came out. I was accumulating 'Critical Care' for years. I would go for a whole year and not touch it. And then I'd go back to it.

The most interesting character to me is someone who is stuck in the no man's land between Belief and Unbelief, Faith and Faithlessness. I'm capitalizing like a German, but it doesn't matter whether it's faith in a person or in God, or belief in science or whatever, it's the desperate in-between state that makes for interesting dramatic tension.

As the financial experts all over the world use machines to unwind Gordian knots of financial arrangements so complex that only machines can make - 'derive' - and trade them, we have to wonder: Are we living in a bad sci-fi movie? Is the Matrix made of credit default swaps?

As a society, we pick words that are offensive based on what we're most afraid of. We associate sounds with some dangerous idea, and right now the most dangerous thing to us are the differences between us.

I don't think people should be able to swear whenever they want. I just don't want the federal government making laws about swearing. We should trust people's own instincts about what is appropriate in any given situation.

And it was back in the mid-1980s, and as I point out in a piece, that was when we are spending about eight percent of our gross domestic product on health care. And even then, we had the impression that so much of the excessive, aggressive medical treatment that took place at the end of life was not only unnecessary but it was cruel.

Man is a fire-stealing animal, and we can't help building machines and machine intelligences, even if, from time to time, we use them not only to outsmart ourselves but to bring us right up to the doorstep of Doom.