I am not addressing god in my scenario, I am addressing a way of seeing spacetime, matter and energy as one substance. Also this has opened up the possibility that god was able to change things about the universe (the laws of physics?) from inside the singularity, which you point out.
I will address the god now, you point out here in post 1425,
"And if he is the same material, then whence did he derive? He would comprise another universe that gave rise to the singularity and then we're just speaking of a multiverse with no explanation for the origin of that entity."
This is turtles all the way down and brings up a greater problem than the presence of god, the presence of existence itself.
I see an issue here with the idea of omnipotence etc, it seems to me that we cannot seriously consider that this god is in anyway truly omnipotent, or any of the other omni's. This is because it is humans who have bestowed these attributes on God and humans do not have the capacity to consider what they are actually saying logically in this regard. It is more likely in my opinion that the omni's were introduced to the Judao-christian religions to denote a God of vast extent and power, rather than anything truly omni'. Indeed if one looks to Brahman this issue is avoided in an ingenious way.
So I will not address any kind of omnipotent god as it is a nonsense.
The god in my scenario can be viewed as if of the same substance as the forcefield, but of a different point on a common spectrum, not only in frequency, but also in dimension.
If one has a dimension equivalent to the singularity, it can be regarded as a portal, worm hole or black box through which information from other regions of existence become manifest.