A fined tuned argument.....Heywood style.

[Mudhammam]

Heywood, can you tell us what are the exact conditions required for life? If you can't, then you are making an unjustified assumption in believing life could never have come about if conditions were drastically different. The fact is, the fundamental laws are pretty simple. You don't gain anything by positing an additional mystery. Why does God have the Universe-making conditions he supposedly has? That's far a more mysterious and irreproachably uninteresting question.

I'm arguing about emergent complexity....not life. I don't know how to quantify emergent complexity....although I think about the problem a lot. I know that in general random conditions do not lead to emergent complexity.

If you or others are not familiar with emergent complexity the following is a good introductory video. It has Neil Degrass Tyson in it.

It sounds like you're wondering why there is chance and necessity. There's probably an answer, or some good theories, in research of entropy and statistics. As to why, it's just pointless fun speculation until further understanding of how the brute laws came to be and why/how their evolution occurred the way it did. Why is there any change in the Universe, much less an almost infinite constant influx of it?

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Also, you can rule out an intelligent designer, though maybe not a clumsy and highly-restrained one.. ya know, since the existence of emergence sits on a knife's edge as you point out. Presumably, an intelligent creator could have designed it however preferred but the way it apparently decided reflects a lot of pointless stupidity.