Elon Musk

I don't have any to get that career in physics, but I have a strong interest in the subject.

I don't have any to get that career in physics, but I have a strong interest in the subject.

So...

So...

So my opinion on, say, creating a fusion reactor on Earth is I think this is actually not a hard problem.

So my opinion on, say, creating a fusion reactor on Earth is I think this is actually not a hard problem.

Actually, I mean, it's a little hard.

Actually, I mean, it's a little hard.

I mean, it's not like totally trivial.

I mean, it's not like totally trivial.

But if you just scale up a tokamak, the bigger you make it, the easier the problem gets.

But if you just scale up a tokamak, the bigger you make it, the easier the problem gets.

So you've got a surface volume ratio thing where you're trying to maintain a really hot core while having a wall that doesn't melt.

So you've got a surface volume ratio thing where you're trying to maintain a really hot core while having a wall that doesn't melt.

So that's a similar problem with rocket engines.

So that's a similar problem with rocket engines.

You've got a super hot core in the rocket engine, but you don't want the walls, the chamber walls of the rocket engine to melt.

You've got a super hot core in the rocket engine, but you don't want the walls, the chamber walls of the rocket engine to melt.

So you have a temperature gradient where it's very hot in the middle and it gradually gets cold enough as you get to the perimeter, as you get to the chamber walls in the rocket engine where it doesn't melt because you've lowered the temperature and you've got a temperature gradient.

So you have a temperature gradient where it's very hot in the middle and it gradually gets cold enough as you get to the perimeter, as you get to the chamber walls in the rocket engine where it doesn't melt because you've lowered the temperature and you've got a temperature gradient.