 I'm just saying, it's just kind of strange, all the speed of light. And then, of course, you know, Albert Einstein's the one that came up with energy equals mass. What is it? E equals mc squared? Mass times the speed of light squared. And that was, you know, one of the things that helped us to be able to develop the nuclear bomb. I mean, this guy was brilliant. And I just have trouble just understanding the basics of it.