David Kirtley

How much concrete?

How much concrete?

How much steel?

How much copper and aluminum?

Different materials cost different amount.

But at the end of the day, the cheapest function is the least amount of materials.

Wow.

Okay.

And so we think a lot about that and how we can make these systems smaller so they can be developed at lower cost.

Now, there's a flip side.

You still need to produce electricity.

So if you make them really small and they don't produce electricity, and there is some minimum size to fusion, and that's really important.

Fusion scientists and engineers don't see you'd ever have a fusion generator on the back of your DeLorean, for instance.

The physics doesn't let that one happen.

At least physics is, as we've understood for the last

100 or 200 years.

And just to meet our needs today and not to even talk about the needs of tomorrow or the needs of AI or any of or the growth that's probably coming just to me today.

And so but fundamental to that is it has to be a product that people will buy.

It has to be a generator that is making that electricity at low cost.

And it's got to be soon.