A. Testers Light The Way
A. Winston Churchill "Mr. Churchill, as First Lord of the Admiralty, you're going to regret building battleships that depend on fuel oil from the Middle East. Also, can I talk to you about something we in the future call 'global warming'?"
A. I hope never to know that in my lifetime.
A. Perfect happiness means knowing that what I am now, where I am and what I'm doing now, and what I'm about to do, are all as they should be, and furthermore that the people I love also love me. I have felt that way a few times in my life.
A. With a survey team on the nearest Earth-like planet, or else wandering on the campus of MIT. One of those. Assuming I can teleport back home at will...