A universe can either preclude life, permit life, or be optimized for life. With natural processes, optimized should be extremely rare relative to permissive, and we wouldn’t be here in the first place if life is impossible. So with natural causes, we should expect to be in a universe that permits life, but barely. That is what we find. If we were in an optimized universe, that would be evidence for a designer, but that is clearly not the case. If we were in a precluding universe, that would be extremely strong evidence for a designer, but again, that isn’t the case. What we actually observe is not evidence for a designer at all.