If the universe was fine tuned for our life...

[Heywood]

In order to define "sub reality" I have to use words.

Let me help, there's a simple reason you are struggling to describe it - it (sub reality) only exists in your head.

You're taking a quote of mine out of context. Awesome job at underhandedness.

A sub reality is a space continuum that is governed by rules. The space continuum of a subreality is not the space continuum of its parent reality.

Case in point, this sort of mumbling is the result of trying to describe something that doesn't exist (except in your mind). Just accept it, forget about sub-realities and move on. You'll make some room in your brain for some other delusions to move into.

There is no mumbling here. Our reality is a spacetime continuum governed by certain rules. This is a fact and it is not in dispute. Our Space time is a stage which allows things to happen. A sub-reality of our reality is going to be self similar. A sub reality is a stage set upon an stage.

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As I said before, this is just kicking the can down the road. The uniqueness of your reason for fine tuning doesn't magically make fine tuning in and of itself a reality. You have yet to provide an example of any physical constant having a different value or describe a mechanism by which the constants could vary. Conjuring a god or a multiverse as something that could change universal physical constants and then pointing to fine tuning as evidence/proof of a god or a multiverse is circular reasoning.

We can make many different completely coherent mathematical models of the universe where the rules are different. There is no reason to believe the rules of the universe could be different. In fact in order to believe the rules of this universe are some brute fact of nature and absolutely had to be this way......one has to invent a means which require our specific rules to be a brute fact of nature.

I see no reason to invent things simply to justify a world view that our universe is the way it is because it simply could be no other way. This brute fact explanation is one of the ones I have rejected. Its certainly possible...but there is no reason to believe it is true other than it is possible.