Nothing can really be ruled out at this point, and there are all kinds of theories. Most seem to agree at this point that the Level I Multiverse is a thing because it's existence directly flows from the concept of an infinite inflationary universe. That's a theory which would lead to us existing here because we're in a universe where the physical laws worked out in such a way that we could be here. I've never heard of the concept that the laws "evolved" to what they are now, I'll certainly read up on it.