If the constants of the universe were all tiny, tiny, but different, like different one part in a billion or something. Maybe in our daily lives, we would not notice. But over the history of the universe, things would be so fundamentally changed that our existences would just not be the same. I'll give an example. There's a fun calculation you do in astrophysics graduate school. And I remember thinking, wow, if we just change the gravitational constant to the universe by a tenth of a percent, then the surface of the Earth would be uninhabitable. Right. Are you saying Neil and Charles, that there is a natural tolerance albeit a small, very tiny one in