You know that the future is coming and that it will be full of new inventions and more intelligent
computers.  Still, it is difficult to imagine precisely how it will unfold.  

You know that it is dumb to plan to send humans to Mars in 20 years because by then you will have
robots with sufficient intelligence that would make a better substitute.

But if you were a human politician talking to a nation of voters, you would probably come out in
favor of a plan to send humans to Mars.