Don't try to solve serious matters in the middle of the night. - Philip K. Dick

He awoke—and wanted Mars. The valleys, he thought. What would it be like to trudge among them? Great and greater yet: the dream grew as he became fully conscious, the dream and the yearning. He could almost feel the enveloping presence of the other world, which only Government agents and high officials had seen. A clerk like himself? Not likely.

"All right," Eric agreed. "If you were me, and your wife were sick, desperately so, with no hope of recovery, would you leave her? Or would you stay with her, even if you had traveled ten years into the future and knew for an absolute certainty that the damage to her brain could never be reversed? And staying with her would mean-"

"I can see what it would mean, sir," the cab broke in. "It would mean no other life for you beyond caring for her."

"That's right," Eric said.
"I'd stay with her," the cab decided.
"Why?"
"Because," the cab said, "life is composed of reality configurations so constituted. To abandon her would be to say, I can't endure reality as such. I have to have uniquely special easier conditions."

"I think I agree," Eric said after a time. "I think I will stay with her."
God bless you, sir," the cab said. "I can see that you're a good man.

I mean, knowing people, people are terrified of the unknown and they want to just kill the unknown.