"REVELATION 4:1-3"
You know the E's never ever discuss the evolution of the 'spirit'. I suppose it does not exist to them, and boy are they in for an awakening, I imagine there are going to be plenty of 'red' blushing spirits when that time occurs.
I wasn't aware that the existence of spirits had been scientifically substantiated, a step necessary before one attempts to discern how they evolved.