I'm not any more idealistic than anyone else.
I don't go around saying that human beings are going to love each other so much that they're going to set up a utopia.
No, what I'm saying is if human beings have any sanity,
enough sanity to fear the consequences of not doing it,
and enough sanity to hope for the consequences of doing it,
then they will do it.
But I can't guarantee that the human species will be sane.
And if they are not,
then we will probably destroy ourselves.
And who is going to fight that?