I’m curious what will happen to marriage if we become immortal. I think a lot of people look across the table at their spouse and think, 50 years is more than enough time to spend with any one person.

The concept of marriage has changed. Fifty percent of marriages dissolve within a decade or two, and people already have second life spouses.

Image Ray Kurzweil Credit... Adam DeTour for The New York Times

But what about you and your wife? Are you mated for eternity?

We’ve been married 37 years. I made a commitment to my wife, and I have no intention of changing that. But I actually don’t talk about the very long term. I’m focused on the challenges of the week and the year, maybe the decade.

Your critics like to say that in addition to foreseeing much that has come to pass — like predicting in 1983 that a computer would dominate humans in chess by the late ’90s — you have also made plenty of erroneous predictions, like writing in 1999 that there would be continuous economic growth for the United States and a consistently rising stock market through 2019.

But there has been continuous economic growth, every single year except one over the last decade.

Your father, a musical conductor, died when you were 22, and you insist that by using his DNA, as well as the music and writing he left, you can reanimate him. Will we literally find him on a car lot picking out a new Cadillac?

By 2029, computers will have emotional intelligence and be convincing as people. This implies that these are people with volition just like you and I, not just games that you turn on or off. Is it my father? You could argue that it’s a simulation. But it’s not something you can play with. You don’t want to bring someone back who might be very depressed because the world is very different than they expect and the people they know aren’t around.

You predict that by 2045, computing will be somewhere in the neighborhood of one billion times as powerful as all the human brains on earth. But if these machines are so smart, won’t they achieve some sort of dominion over us?

It’s not us versus them. We’ve created these tools to overcome our limitations, and we’ve integrated with them already. A.I. today is not in three or four dark federal intelligence agencies; it’s in billions of mobile devices around the world.