Lex Fridman

When is the first time you programmed, Kieran?

I don't think we quite talked about x264 properly.

We talked about David.

Can we return, backtrack a little bit to x264, this thing that powers basically all of video on the internet.

So can you tell me the story of x264?

And Kieran, you're actually a contributor to x264.

So the psychovisual distortion, that's the critical thing.

That's the thing.

I mean, it's kind of revolutionary that we can rethink...

Don't make it like this kind of theoretic thing of compression.

Make it all about... Being pleasing visually to the eye.

Yeah, yeah.

So compressing in a way that loses the least amount of information for the stuff that matters for us humans.

So for people who are just listening, we're looking at a bunch of humans running along a river.

You have the reflection, a lot of really high information textures everywhere, the leaves and the lighting playing with the leaves and all of this.

Can you speak to how do you measure psychovisual stuff?

Like, how do you turn how pleasing a compression is for a human eye into a number?

Is that even possible?

But all of them, according to Karen are large percentage love anime.

There's several things I've never got into, and one of them is anime, and I need to... I watch anime so much.