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slash UK slash AI for people. Welcome to GabFest Reeds for the month of March. I'm John Dickerson, one of the hosts of Slate's political GabFest.

This episode I spoke with Chris Miller, the author of Chip War, the fight for the world's most critical technology.

It's a book about the history of the semiconductor, the

wondrous process of how they are made, and it's a book that gave me a totally new view of

global politics and economics. Oh, it's so wonderful, Chris, there's so much to do.

You know, like a good student, I have lots of, lots of notes. What to you is the best

description of what a semiconductor does. I mean, so people will say it's ones and zeros.

Like what is it at its most basic that we can then just imagine, okay, multiply that by 15 million.

Yeah, it's just a circuit turning out and off.

It's like a light switch.

And when it's on, you get the one.

When it's off, you get the zero.

And it's just lots of light switches, except rather than being the size of your finger,

flipping them up and down, they're measured in billionths of a meter.

And silicon was, as I recall from reading this, and you'll correct me, was important

because it could be both a conduit and opaque. It could have different properties.

That's right, yeah. Semiconductor refers not only to the devices instead of our phones,

...