 you would burn about two-thirds cleaner than a car two decades prior. So you use that cleaner. Cars in the 60s, the old muscle cars and stuff like that, they were just awful on efficiency. Always, you know, you could smell raw fuel. Remember the old diesel trucks and they would roll coal? And everybody would be like, oh, my God, you're destroying air. That's carbon, most fertile molecule in the universe. But don't worry about that. But...