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.
There is a big difference in room sizes between 1000 and 2500 sq. ft. houses. For the most part, a 1000 sq. ft house will not even have a formal dining room. Smaller homes have 10x10 size secondary bedrooms on average. A few may have a 9x10 but those are very rare. A master in those may run 10x12.