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Vint Cerf

Vint Cerf

American developer

Sep 25, 2026

Huma KhaliliPANELIST
19:25
How do you connect those things? Do you think those things are connected?
19:30
Oh, absolutely.
19:31
In fact, Alexander Graham Bell, interestingly enough, was married to a woman who was deaf.
19:39
And so I have a kind of an interesting relationship there.
19:45
But ironically, the telephone was the thing that deaf people couldn't use for a very, very long time until the white-breadth modem came along in the 1960s.
19:53
It was an off-on-50-baud keyed thing for teletypes that could use modems to talk.
20:00
You could dial it through the telephone network and type at each other.

10 MINS LATER

30:27
It's touched everything.
8:30
How does our understanding of intent change when we move from deterministic code to probabilistic AI models that sometimes don't always have human in the loop in that chain? I mean, this is more than trying to send the word login and only getting LO, right?
8:47
So a question like that is what's called a portmanteau question.
8:50
It's got a lot of components to it.
8:52
It's a little bit like the physics exam at the end of the year that says, describe the universe in 25 words or less.
8:58
Give three examples.
9:01
So it's a little hard.
9:02
Now, it's true that we had people in the loop, but the networking part was all automated.

17 MINS LATER

26:35
So what does that mean? Should we still be worried about this? And how do we build for that verification and veracity of information?
44:40
AT&T, AT&T were a massive company at the time, and they didn't even want to adopt packet switching because they had invested so much and they just didn't think it was good, but they... small companies was it bbn bbn was one of the first companies to really deploy that packet switch network that's right so we've ended up with a 32-bit uh address field for ip addresses and we obviously have these classifications for the for the subnets a to e why was 32 bits i mean it just seems so small now why was that Wait a
45:21
minute.
45:23
Remember, this is a decision that's getting made in 1974.
45:26
And first of all, this is an experiment, right? How many networks were there at the time? Well, let's see.
45:37
There was the ARPANET.
45:38
There was the packet radio network.
45:40
And there was the packet satellite network.

7 MINS LATER

52:23
Are there any fields in IP and TCP that you regret adding and ones that you wish you had added?
8:22
And when we go back and we look back 56 years after the first four nodes of ARPANET were set up, and you can remind us where the first four nodes were, where do you think the future of the internet is headed, especially in this age of AI and in terms of this world of de-globalization?
8:40
You know, questions like that, Ray, are kind of like the final exam in the physics class.
8:44
Describe the universe in 25 words or less.
8:47
Give three examples, right? First of all, we are increasing our capacity in the internet world to move data around.
8:58
A standard data ray speed or transmission speed now on the optical fibers It's 400 gigabits a second per optical channel.
9:07
It's soon going to 800 gigabits a second.
9:09
And it's so hard to imagine how could we possibly need to send stuff at that speed and with that much capacity.

13 MINS LATER

22:29
making him blush.

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