I don’t know about the 50% thing, but, I would not be surprised to find 50% believing in astrology, 50% believing in anthropocentric global warming, 50% playing the lottery on a regular basis, 50% having difficulty really grasping what 10,000 years is; i.e. the magnitude or having an effective frame of reference.
Anyway, if the 50% is meant to impress me, it falls way short.
No way, those numbers add up to more than 100%!
(signed) Lottery Hopeful in Rio Linda