Hi all, extremely interesting thread...
Ive gotta say I agree with warrens Schrödingers cat reference. Until we 'open the box' and find undeniable evidence of life, we can safely assume that it both does and does not exist, regardless of mathematical formulae which supports either side of the arguemet.
Mathematical theory is just as the term implies: THEORY, until it can be proven (which at this point it can't), it's nothing more than a mathematical crystal ball which can make predictions (some quite accurate), but contains no real evidence to back up the predictions. Like any crystal ball, the predictions made are open to interpretation and can be taken several ways.
Just my 2¢ worth, I'll get back in my hole now
Davin