And these micro machines really are at the heart of life.

So you think about loyalty.

But the trend in medicine actually is to get exponentially smaller.

But we'd like to know the synthesis symbolized at the very top.

So I want to talk a little bit about seeing the world from a totally unique point of view, and this world I'm going to talk about is the micro world.

We can now leverage microfluidics,

Some of them expanded into micro black holes with devastating consequences.

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They could have a mental image of the cell as a large, bustling, hugely complicated city that's occupied by micro machines.

It means that you can interface it with some of the things that are typical of technology,

But I want to talk about this larger world, the world of the micro world.

It's got the same diversity you find actually in a pig brain, where you have 100 billion neurons.

And the nano world, the whole micro world that we see is a nano world that is wrapped up within that.

But when you look closer at this, look at what's there, it's really quite amazing.

We're impassioned with this idea that whatever you want to do, whether you want to replace a vein or a bone, or maybe be more sustainable in microelectronics, perhaps drink a coffee in a cup and throw it away without guilt, maybe carry your drugs in your pocket, deliver them inside your body or deliver them across the desert, the answer may be in a thread of silk.

And that is the world of molecules and atoms.

And it's technological, so it can do things like microelectronics, and maybe photonics do.

And before we do that, I think it's really important to get a microeconomic level understanding of why do prices increase or decrease.

As a particle physicist, I study the elementary particles and how they interact on the most fundamental level.

And so what this will do, all of this will shift aggregate demand to the right.

I'm very, very much engaged in art history and 'mic mac', which is micro macroeconomics.

In this video we're gonna talk about the law of demand which is one of the core ideas of micro economics.

So I want to talk a little bit about seeing the world from a totally unique point of view, and this world that I'm going to talk about is the micro world.

And I wondered, what if the answer to some of our biggest problems could be found in the smallest of places, where the difference between what is valuable and what is worthless is merely the addition or subtraction of a few atoms?

No life, from the smallest life to everybody here, would be possible without these little micro machines.

But the unfinished business for 21st century science is to link together cosmos and micro world with a unified theory symbolized, as it were, gastronomically at the top of that picture.

So this whole world, the nano world, this area in here is called the nano world, and the nano world, the whole micro world that we see, there's a nano world that is wrapped up within that, and the whole and that is the world of molecules and atoms.

For most of my research career, I've been using accelerators, such as the electron accelerator at Stanford University, just up the road, to study things on the smallest scale.

If my research group had a logo, it would be this picture here an ouroboros, where you see the micro world on the left the world of the quantum and on the right the large scale universe of planets, stars and galaxies.

Because, as I'll explain to you, the questions on the smallest and the largest scale are actually very connected.

So of course, this is a very crude machine, but we're working on a micro scale version of these, and hopefully the cubes will be like a powder that you pour in.

You can do amazing things when you realize what nature has been doing all along.

And the reason that is, is because in a place like this island a lot of the sand is made of biological material because the reefs provide a place for all these microscopic animals or macroscopic animals grow and when they die, their shells and their teeth and their bones break up and they make grains of sand.