Some things scale well. Double their size and you get double the output (or more). Other things don’t, and my God is it important to know which is which.
Let me tell you about Robert Wadlow. He was enormous, the largest human ever known.
A pituitary gland abnormality bombarded Wadlow’s body with growth hormone, leading to staggering size. He was six feet tall at age seven, seven feet tall by age 11, and when he died at age 22 stood an inch shy of nine feet tall, weighed 500 pounds, and wore size 37 shoes. His hand was a foot wide.