English transcript

You'd think that someone like Bill Gates, who clearly started a technology company that's one

of the biggest companies in the world, Microsoft, you'd think he'd be really quite strong in the

sciences. But actually, my, at least, direct conversations with him, he is not strong in the

sciences. He came to visit me at the Tesla Gigafactory in Austin and was telling me that

it's impossible to have a long-range semi-truck. And I was like, well, but we literally have them

and you can drive them. And Pepsi is literally using them right now. And you can drive them

or send someone, obviously Bill Gates can't drive it himself, but you can send a trusted person to

drive the truck and verify that it can do the things that we say it's doing. And he's like,

no, no, it doesn't work, doesn't work. And I'm like, okay, I'm kind of stuck there.

Then I was like, well, so it must be that you disagree with the watt hours per kilogram of

the battery pack so that you must think that perhaps we can't achieve the energy density

of the battery pack, or that the watt hours per mile of the truck is too high.

And that when you combine those two numbers, the range is low. And so which one of those numbers

do you think we have wrong? And what numbers do you think are correct? And he didn't know any of

the numbers. And I'm like, well, then doesn't it seem that it's perhaps premature to conclude that

long range semi cannot work if you do not know the energy density

of the battery pack or the energy efficiency of the truck chassis.