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I'm not pessimistic about anything. You just have to have enough passion and perseverance. I alway point to 1972. The very idea that Nelson Mandela would be president of South Africa was unthinkable, unimaginable and impossible, yet it happened. So I'm eternally optimistic.

We're not even the captains of the spaceship. We're just the passengers, watching and consuming. The crew is the insects and the microbes and the other creatures, doing what they do to keep the ship functioning. And right now we're killing off the essential crew, one by one.