JFK, 1962: We're going to go to the moon.
You: You do realize that we don't even have clean water on a global scale?
You: You do realize that we don't even have clean water on a global scale?
I think the parent commenter's point was that it's pretty naive to think that there will be no more human-driven vehicles at all. Change will happen quickly in some parts of the world, and other parts will take a long, long time to catch up.