I don't understand what you mean by the bolded.
We can positively verify that consciousness is a product of the brain. This is a solid scientific fact.
I don't argue that it looks this way, but that it still might not be this way, because so little is known about the nature of consciousness, it is unknown whether god exists or not and whether consciousness continues after the body has died.
It is precisely why my position exists.
Because (as I did explain) it is assumed that consciousness is a product of the brain due to the fact that it cannot be verified not to be but
is still possibly something that uses the human and other terrestrial forms.
I mean consciousness.
ETA.
I have already mentioned it, but again - consciousness could possibly preexist and use the human instrument as something to experience [being human] through.
Another possibility is that the brain does indeed create consciousness, but the nature of consciousness might be that it continues to exist after the brain which creates it ceases to exist. The brain in that sense would act as a birthing chamber or seed.
In relation to that possibility, brains which were not of human origin could have created consciousness and that consciousness has been able to utilize the human instruments [bodies/brains] which evolved in a separate period of time far later than the original. The sheer extent of the physical universe and the time period between this [our now] moment and the big bang, makes this a possibility.
Just to be clear, I am not claiming any of these as beliefs or facts. I just think they might be possible. I haven't encountered any data that could show me these are not possible ideas.
If we knew everything, then possibilities would cease to be relevant.
The 'solid scientific fact' you refer to I am not aware of. I am aware that certain brain manipulations can induce certain states of awareness etc but I do not see how this solid scientific fact proves conclusively (gives us the ability to say we know with 100% certainty) therefore that consciousness does not continue after the body dies.
That is why I choose the position I do, which - as I say - is "I Don't Know"