Stephen Hawking ended "A Brief History of Time" with the most famous sentence in popular science — "then we would know the mind of God." An Oxford mathematician who knew him says Hawking never meant it, knew it would sell books, and did it anyway. Stephen Hawking admitted the most famous line in his book was designed to sell copies. An Oxford mathematician who was in the room explains why that single decision damaged public trust in science for a generation.
John Lennox is Professor Emeritus of Mathematics at the University of Oxford, a man who debated Dawkins, Hitchens, and Singer on the world's biggest stages. We cover: why Hawking weaponized the phrase "mind of God" while privately rejecting God, what Brian Keating witnessed firsthand meeting Hawking in 1995, and the one contradiction Hawking never addressed.
00:00 The most famous sentence Hawking never believed 01:15 What Hawking actually said about selling books 02:30 Brian Keating's 1995 encounter with Hawking 03:45 Using God's name to move 10 million copies 04:30 The question Hawking refused to answer
John Lennox is Professor Emeritus of Mathematics at the University of Oxford, one of the few people who publicly debated both Hawking's ideas and his contemporaries Dawkins and Hitchens. We cover: why Hawking used God as a marketing device while arguing God doesn't exist, what happens when the world's most famous physicist treats theology as a sales hook, and the contradiction Hawking never resolved.
00:00 The most famous sentence in science — and the lie behind it 01:15 Hawking knew "mind of God" would sell millions 02:30 Using God's name while denying God's existence 03:45 Why Lennox says this damaged public understanding of science 04:30 The question Hawking refused to answer honestly
But, you know, speaking of, of Stephen Hawking, you know, he was, uh,
certainly a materialist.
Um, and I think that he had, at least he was honest.
He was very funny.
I met him once I asked him, why'd you write this book?
A brief history of time.
It was back in 1995 at a Royal society meeting.
He could still respond in more or less real time.
I said, Stephen, no one's read this book.
It basically said, well, it's not important that they read it.
It's just that they buy it.
But the reason that he wrote it was that he needed to pay for his
daughter's private education.
So he was honest.
But at the end of his book, he says, you know, if we, when we not, if
we, but if, when we discover the laws of string theory, which we will
know the mind of God, we will know the mind of God was that cynical.
Did he insert that God, because it would also lead to book sales, you
know, every equation he said, cut your book sales in half, but every mention
of God, he said, doubles your books.
What do you make of this, this relationship that he had with this,
this kind of worship of science and the natural world and this acuity that he
had, but also this kind of blindness to maybe what is really going on behind the
scenes?
Was it utilitarian?
How did you, how do you think he viewed or would view LLMs and AGI right now?
I have no idea.
I always think it's, it's difficult to second guess what, what people really
think, but I noticed this because I did read that book from beginning to end.
And I noticed this and I thought, well, is he leaving a door open there, but
in later life, he shut the door.
It seemed he very clearly shut the door at least as far as his public utterances
went, but there's, there's another side.
I understand that he began to attend church and he showed interest in that
kind of not only spiritual dimension, but Christian dimension.
And I've met one or two people who talk to him about these things, but how deep
it went, it's very hard to say.
I think, I think Lord Rees made a point about Stephen and Lord Rees admired him.
You know him, I'm sure very well.
He's been on the podcast.
He said about Stephen, he said he'd written papers with Stephen.
I know Stephen very well and he knows virtually nothing about religion and very
little about philosophy.
And I wouldn't trust him on either of those things.
What struck me about his books, very honestly, I was, I was hugely surprised.
I saw an advanced copy of his, the last official book he wrote and I wrote about
it, I wrote a book called God and Stephen Hawking to try and put my thoughts
together, which is still in print.
And of course I never got any reaction to it from, from the Hawking side, but I just
felt that with all his genius and logic and mathematical ability, his understanding
of philosophy was extremely weak.
I mean, that shouldn't surprise you.
For a man to say that philosophy is dead and then write a book, the rest of his book
on the philosophy of science, wasn't exactly clever.
I find that strange.
I never met him, Brian.
I remember seeing him because he was just beginning to show signs of his illness
walking around Cambridge.
I went up in 1962, which is roughly the same time as he turned up, a bit older
than me, to be a PhD student.
So I remember him and he clearly was an absolute genius.
And I've talked to people who worked with him.
Einstein, you mentioned, is useful, of course, for many reasons.
And one of the things is his famous rather dry observation that the
scientist is a poor philosopher.
That's right.
Well, it goes back even to Galileo, you know, in his, in his first encounters with
the telescope that he would say things like, well, the telescope obliterates the
need for philosophers because you can prove with your eyes that the Milky Way is
made up of stars, for example, which is wrong.
And it's just amazing to look at how many of these great men and presumably, you
know, their, their colleagues, you know, that they had great flaws.
And I think when we lionize and we venerate them, we kind of worship them as
gods, especially, you know, I've written about this in my book about the Nobel
Prize, that we kind of, it's sort of a kosher idol, you know, for a vota Zara
for idol worship, because it's not bad.
Right.
I mean, you're doing science and, but you literally, John, you go to Stockholm,
you've been, you bow down, you receive a gilded graven image of Alfred Nobel,
who's the patron saint or, you know, whatever of dynamite of dynamite, you
know, the, the merchant of death, he was called, but, but getting back to Hawking.
So one of the final things that I remember Roger Penrose has told me many
times is that Steven was the best person to make a bet with because no matter what
side of the bet he chose, he would always flip flop.
And so you'd be right.
And you'd win the bet.