Two scenarios that may/may not happen.

[possibletarian]

They keep on telling that the consciousness is a product of the brain, that with the physical death is all over and so many other unproven claims.

Do you know of any consciousness outside of a brain ?
It's irresponsible to propose a consciousness outside a brain when all the examples that we have are in a brain, we have zero evidence that any consciousness survives the brains death.

Using you system you could propose anything, but i doubt any sane person would lead their everyday life like that.