In the philosophy of religion, Occam's razor is sometimes applied to the existence of God. William of Ockham himself was a Christian.
Quick Answer. The average American bedroom in new homes is between 120 and 150 square feet. Master bedrooms are typically much larger, averaging more than 200 square feet, without taking into account closet space or a bathroom.
144 square feet (12 X12) is normal for all except the master bedroom. Master bed room is more like 250 - 300 square feet.